admin

 

Hello, Appraisers!

It is already time for Appraiser training for the 2012 DI season, and you have a few options about where to go:

  • Feb. 4, 2012 – Iowa City, Kirkwood Campus
    • 1816 Lower Muscatine Rd., Iowa City, IA 52240
    • Check-In: Room 255
  • Feb. 11, 2012 – Kuemper Catholic High School, Carroll, IA
    • 116 S. East St., Carroll, IA 51401
    • Check-In: Cafeteria/Hallway
  • Feb. 18, 2012 – Ames Middle School, Ames, IA
    • 3915 Mortensen Road, Ames, IA 50014
    • Check-In: Commons

You should arrive at 9 am to check-in/register. In order to check-in, you should bring with you:

  • 2 copies of the Appraiser Registration page (Note: Your Team Manager should give you this. It is page 5 of the Iowa Registration.)
  • Pages 6-7 – Appraiser Challenge Overview (one copy)
  • Page 8 - Appraiser Agreement (one copy)
  • A pencil/pen
  • $5 for lunch or a bagged lunch

This year all Challenges will be trained at all locations EXCEPT for Challenge C, which will not be trained in Carroll.

If you have never appraised before (or even if you have), you will find that the slide show called “Appraiser Training,” found at DI University, is helpful as an overview/review.

For full details about Appraiser training, please refer to the Appraiser Information page of this Web site. If you have any questions or concerns, please let us know right away by emailing cre8iowa@gmail.com.

Share
Dec 282011
 

Students for a Creative Iowa is always striving to provide the best support possible to our teams and so we are trying something new. This year cre8iowa is offering a pre-sale on the 2011-2012 state t-shirts. This year’s winning design was Legendary Creativity (see right), this design will be placed on a bright red t-shirt. A change to this year’s shirt from past years is that the back will be blank, so that your team can extend your creativity to the Iowa shirt. Celebrate your team or school, celebrate Iowa, celebrate DI, celebrate whatever you want on your shirt! We will be hosting a parade of shirt designs at closing ceremony at the State Tournament for anyone who has decorated the back of the Iowa State t-shirt (more details will be provided closer to the tournament date). Please note that Students for a Creative Iowa is planning on ordering a set number of shirts and so please plan accordingly.

 

In order to pre-order, you must fill out the order form (link below) completely by January 28th 2012. Once your pre-order has been received, you will receive an email from cre8iowa letting you know if the desired t-shirt size(s) and quantities are available and providing you with the official total. At that time you will be asked to mail in your check or purchase order for the total amount, which must arrive within 10 days to the address below. Note: We can offer the 2011-12 affiliate shirt for $10 per shirt.

Students for a Creative Iowa—Pre-Order
Attn: Sharon Wallace
1656 W. 42nd St. Apt. 2
Davenport, IA, 52806

 

Once payment has been received, you will receive an order confirmation email from cre8iowa.

You will be able to pick up at the sales table at the Sub-State Tournament on March 3rd. Pick-ups may only be done by the person placing the order or other approved person named on this form. No other person may pick up the shirts.

You can find the order form here: 11-12 Pre-Order Form

If you have any questions, feel free to contact us at cre8iowa@gmail.com.

Share
 

Destination ImagiNation® is once again launching their video contest and opening it to ALL Destination Imagination team members, Team Managers, and volunteers. The winning team member or Team Manager will receive free passes to Global Finals 2012 for their whole team.

For more information see the 11-12 DI Video Contest flyer or go to the Tell Us Your Story Video Contest page.

Good luck and have fun!  

Share
Nov 282011
 

There is no getting around it, technology is everywhere! Think about when you are walking down a busy street or hallway: how many people do you see with cell phones? How many do you see with a music playing device such as an MP3 player? How many individuals do you know that have a computer? How many persons do you know that regularly surf the internet or check their emails or social media sites? If you are like me, the answer is A LOT. If you are also like me, then you love having all of that technology at your fingertips. But do you know how to use all the convenient technology for and in the Destination Imagination® program? Well, here are a few ideas you can think about/use.

 Type-Written versus Handwritten

One of the most obvious ways to use the technology is by typing versus handwriting. Whether it be typing on a computer or even on a typewriter, typing helps make any document legible (aka easy to read). Often times, handwritten words can be hard to make out, because of ink/pencil smudges or poor penmanship.

  • Try at the end of each meeting to have someone type up the notes from that meeting. Then at the beginning of the next one, go over the notes and make sure that nothing is missing. This helps you keep track of what has been decided and what ideas you had before, just in case you need to go back. Keeping and reviewing notes is such a useful activity, the board of Students for a Creative Iowa (cre8iowa) does this at every meeting. Another benefit of typing your notes on the computer is you are less likely to lose those notes completely as you can save the file electronically and print it to have a hard copy.
  • You should be using the electronic fillable registration forms and tournament documents. Both cre8iowa and Destination Imagination offer all the documents in a form that you can type into versus printing and handwriting onto it.  Go HERE for the fillable Iowa Membership Forms. Go to the IDODI Resource Area for the tournament forms. Trust me, it’s worth doing as it makes the lives of the appraisers and tournament officials easier which makes it easier for them to help you and/or give your team points!

 Social Media

Many of us use social media sites to communicate with friends and family. But have you thought of using social media for your DI team?

  • As you can see, blogs can be a great means of sharing information. There are several sites that allow you to put together a private blog which allows only certain people to see it (do an online search for ‘private blog’ for more information). A private blog would be a good way to share and keep track of meeting notes, ideas, materials, or research.
  • The free site, Pinterest (http://pinterest.com/about/), is another potential resource. Pinterest is a virtual board that lets you organize and collect all the images you think are inspiring, cool, or informative. By creating an account you can find, share, and save pictures with others. Try to collect images that help you out with your challenge, whether that is for set design ideas, for research, or something else that you decide.
  • Remember the Milk (http://www.rememberthemilk.com/), another potential website resource for DI teams, is a task management site. As a registered user, you can set deadlines for tasks and get reminders about them on your computer or mobile device. Need to remember to pick up more materials, schedule it for the next meeting! Need to remember to get the Iowa Membership Registration forms filled out, make a deadline for it!
  • What else can you do with popular social media sites? Can you use them to recruit or fund raise? Can you use them to plan and prepare your solution? Utilize your imagination to come up with your own uses.

 Rules of the Road

The “law” of DI is spelled out in the Rules of the Road, including official uses and limitations. Although lengthy, this is a vital document that your team needs to know. But here are some highlights from Rules of the Road that deal directly with what tech can and cannot do in your solution.

  • Are you aware that some pieces of technology are exempt from getting put on the Expense Report? Devices such as MP3 players, DVD players, portable speakers and amplifiers, laptops, tablets, PDAs, and TVs are all exempt as long as you do not modify them. For a more complete list of exempt devices take a look at page 19. All other devices or listed devices that are modified must be given a fair value on the Expense Report. While you can use commercially available devices, I would recommend trying to create your own bit of technology (see the next sections for more information).
  • Even once you figure out whether your device is exempt or not, you need to be careful of the power source. On page 22, the ‘Rules of the Road’ lists different limitations on the use of electricity. Devices that require Direct Current (DC), which is typically batteries, cannot have voltage that exceeds 28VDC for safety reasons. If your device uses over 10 amps of electricity, you must have a current-limiting device, such as a circuit breaker, that can serve as an emergency shut off. Otherwise, to be able to use batteries for your tech device, they must be unmodified and commercially available, such as your normal AA or AAA batteries. To use Alternating Current (AC) power, which is typically done by a wall sockets, you must make sure you either have a Ground-Fault Interrupter (GFI) or not go over 120VAC. The AC rule especially applies to homemade devices. Remember any tournament official can stop a performance if they feel like anything is unsafe. So be safe and follow all of the rules!
  • For Instant Challenge, technology is a bit of an enemy. Specifically, you are not allowed to have anything that beeps or makes noise, such as a timer on a wristwatch or a cell phone, so just shut off all of your pieces of tech. This rule is an important one to remember in practice, that way you are less likely to have something that beeps during the tournament.

 Technical Elements

Remember my recommendation about making your own device? The gist of the recommendation is due to the fact that it is more creative and innovative to create your own device versus buying one from the store. And the more creative and innovative you are, the more likely you are of receiving high scores. In most of all the Challenges, there is at least one technical element required or a technical opportunity that directly gets your team points.

  • Challenge A: ‘Equipment’ worth up to 80 points and ‘Product Design and Usage’ worth up to 30 points; which is 45% of the total Team Challenge score.
  • Challenge B: ‘Solar Energy Prototype’ worth up to 90 points and ‘Theatrical Lighting’ worth up to 70 points; which is 67% of the total Team Challenge score.
  • Challenge C: ‘Cinematic Special Effect’ worth up to 50 points and ‘Original Soundtrack’ worth up to 40 points; which is 38% of the total Team Challenge score.
  • Challenge E: ‘Design and Building of Structure’ is part of the structure Weight Held Category worth up to 140 points and ‘Golf Ball Delivery’ worth up to 40 points; which is 75% of the total Team Challenge score.
  • Team Choice Elements, formerly known as Side Trips, are 15% of a team’s overall score. As the name implies, the team gets to choose two creations to receive score (up to 60 points) appraised on creativity/originality, quality/effort/workmanship, and integration into the Team Challenge.

Plagiarism

While technology makes a wide variety of tools easily available, it also makes it easier to plagiarize. Plagiarism is when someone uses another’s idea or thought as their own. Sometimes it is accidental and sometimes it is intentional, but either way plagiarism is stealing. To make sure you do not plagiarize, give credit to the person that came up with the idea. This is especially important to keep straight in research, where information from many different sources gets combined.

 

What other ways can you use technology? Can you integrate it into your set? Can you make it a part of your skit? Can you use it to make your practices more effective?

Post written by Alisha Heisterkamp, Co-Affiliate Director

Image courtesy of Piyaphantawong/ FreeDigitalPhotos.net

Share
Nov 142011
 

Last week we talked about critical thinking skills in general, this time we are going to discuss how critical thinking ties directly into the Destination ImagiNation® program. Critical thinking is so important to Destination ImagiNation, in fact, that it is a part of the logo. The DI Brand Guide offers the official explanation of the box and ball, as follows:

“Our logo and wordmark debuted at the first Destination ImagiNation Global Finals in the spring of 2000.The ball in our logo was designed originally to symbolize team members, who were popping outside of the proverbial box by thinking creative ideas. Red was chosen to represent creativity and energy, and purple was chosen to represent the passion of our participants.

Over time, the box-and-ball logo has come to represent both Destination ImagiNation, Inc. and the Destination ImagiNation program. Additionally, our interpretation of the box-and-ball logo has changed. We now see the box as a symbol of developers—thinkers that prefer structure, think inside the proverbial box, and enjoy conforming to existing expectations and procedures. The ball has come to be a symbol of explorers—thinkers that find structure limiting, think outside the proverbial box, and choose not to conform to existing expectations and procedures. Both in our logo and our program, we recognize and encourage these two very different styles of thinking.”

DI’s emphasis on critical thinking is because it is one side of the creative problem-solving coin with creative thinking as the other. DI jargon calls brainstorming, or creative thinking, the “generating process,” and narrowing down your options, or critical thinking, the “focusing process.” Generating leads to focusing, which leads to more generating, and the cycle continues. In other words: teams are thinking about thinking when doing the process! The Roadmap, found in your DI Program Materials, re-affirms the dual nature of creative problem-solving by saying that “[creative problem-solving] consists of both creative thinking and critical thinking” (page 8). On the same page, this guide states the importance of using both thinking skill sets, because using both idea-generating tools and idea-focusing tools helps keep a team moving toward a final solution, instead of wandering aimlessly from idea to idea.

It is in this focusing process that one can use the Intellectual Standards of clarity, accuracy, precision, relevance, depth, breadth, logic, and fairness (see last week’s post for more information). By applying the Standards’ questions to your team’s ideas, you can start to focus those ideas according to the focusing categories the DI roadmap lists on page 10:

  • Organizing and analyzing possibilities
    • Your team can organize and analyze those possible ideas by questioning their relevance to the problem or goal or scoring element. Then try to group the ideas for a particular problem or scoring element together.
  • Refining and developing promising possibilities,
    • Your team can refine and develop the most promising solution ideas by questioning how clear and precise each idea is and if the idea is broad and deep enough to encompass all aspects and views of the problem. Examine each idea within your group and then add to or cut out from the idea anything that in the end makes the idea better. Make sure that your idea can account for other’s (such as the appraisers’) interpretations of a particular problem or idea.
  • Ranking or prioritizing options
    • Your team can rank those ideas by questioning if the idea is true and/or doable, if the idea makes sense and follows from the goal, and if the idea has no unfair advantage. Evaluating the ideas in a group and picking just one can be tough, no doubt about it. Your team should think about what they are actually going to be able to accomplish (do they have the proper time, skills, and equipment). The team should double check that the idea does in fact deal with the scoring element (i.e. make sure they refer to the challenge). The team should also make sure that they are not gaining an unfair advantage by using an idea that was not their own (such as from a TM, parent, or another student). If they are, that is an idea that they should not use (see page 17 of the Rules of the Road).
  • Choosing or deciding on certain options.
    • If by the end of the process your team is left with two or three ideas and can’t pick just one, try restarting the focusing process to see if you can combine the best parts of each idea into a single solution.

Note: For more information on this generating and focusing process within DI, please look at the Roadmap pages 8 through 11.

Another way DI highlights critical thinking in its program is through the Connecting the Standards. This document (found HERE) points out what core areas the program intends to develop in its participants. One of those core areas is thinking and reasoning standards aka critical thinking. These skills are educational standards, because the ability to think critically is an important skill for everyday life (see The Critical Thinking Skills). Check out the below chart from the Connecting the Standards page 6.

 As you can see, using critical thinking skills is essential to each and every one of the Challenges, including Instant Challenge.

One of the areas that DI is stressing critical thinking more overtly is Instant Challenge. While Students for a Creative Iowa is currently working on developing some of the critical thinking ICs for our 2012 Instant Challenger to be held on January 14th (check on our website for more details), there are very few such ICs currently in existence. But that does not stop your team from creating your own! Check out our IC Library and try to modify one of those IC so that it involves more critical thinking. Or just use that as a template to make your very own! Remember, any good critical thinking IC will have more than one way to solve its puzzle.

Hopefully, you now know why critical thinking is so important! For more information and ideas on how to develop critically thinking skills with your DI team check out The Critical Thinking Community and especially their K-12 Instruction Strategies and Samples (CT Strategies and Samples).

For a scholarly article talking more about the importance of critical and creative thinking and the DI program, you can purchase “Building Creative Excellence” by Donald J. Treffinger and Grover C. Young from ShopDI for $1.00. Go HERE for more information.

Post Written by Alisha Heisterkamp, Co-Affiliate Director

 

Share
Nov 072011
 

Very few other programs champion creative thinking like Destination ImagiNation®. However, to only focus on this one thinking skill set is a mistake. Critical thinking, which includes logic, is a very important skill set to have and essential for creative problem-solving. But what is critical thinking?

Historically, critical thinking was considered to include the following: reasoning, analyzing, evaluating, decision making, and problem solving. While critical thinking is in part made up of those skills, there are other ways to examine critical thinking. Richard Paul, the Director of Research and Professional Development at the Center for Critical Thinking, said that one way to think of critical thinking is as thinking that analyzes, assesses, and transforms a thought for the better. For example, one is critically thinking when one examines an object, then takes that object and changes it for the better. Mr. Paul also said that “critical thinking is not one isolated skill. It is not even a random list of skills. It’s an orchestrated way of thinking . . . [it’s] a way of being in the world in which the thinker self-monitors and self-assesses.” In other words, critical thinking is also part meta-cognition (thinking about thinking). A person needs to be aware of what and why they are having that thought to be good at critically thinking. The author of the book “Brain Building,” Dr. Karl Albrecht, says that such thinking is not a magical process or a matter of being smart, but it is a learned mental process. In order to be good at thinking critically, one must practice being aware of their own thoughts and the reasons behind them. Dr. Ibrahim Syed, President of the Islamic Research Foundation, also supports the position that critical thinking is a different way to approach ideas, solutions, problems, and decision making. Dr. Syed defines critical thinking as reflective skepticism. When we are thinking critically, we need to be skeptical of the proposed idea, so that we do not fall by the wayside and just accept the idea as the best it could be.

In order to be reflectively skeptical, we need to apply what the Foundation for Critical Thinking calls the Intellectual Standards. Using the standards brings about questions that can be asked of an idea or solution in order to make that idea or solution better. Below is each of the standards and the questions one can ask.

  • Clarity: is it clear? Can you elaborate further on the solution? Can you express the idea in a different way? Can you give an example? Can you provide a picture?
  • Accuracy: is it accurate? Is the solution doable in a given situation? Can you check if the idea is true? How would you check if your idea is correct? Can you explain how the idea/solution addresses the problem or goal?
  • Precision: is it precise? Can you clarify the idea further? Can you add more detail or description to your solution? Can you cut something out and the idea is still accurate and clear?
  • Relevance: is it relevant? Is any idea connected to the topic at hand? Does your criticism affect the solution or the goal? Do any “improvements” to the solution deal with the goal or problem?
  • Depth: is it deep enough to address all parts? Have you thought all the way through the idea? Are you dealing with all important components of the solution? Are you dealing with all the components of the problem or goal you are trying to address?
  • Breadth: is it wide enough to account for other points of view? Have you thought of how others will look at the idea? Are you considering the problem/goal/idea from all angles?
  • Logic: is it logical? Does the idea make sense? Is the idea a reasonable solution to the problem? How does the solution follow from the goal? Can all your ideas about the situation work together? Are all your ideas about the situation true or correct?
  • Fairness: is it fair? Does your idea provide equal footing for all involved? Does your idea wrongly discount other points of views? Are you unbiased about the idea, so you can take suggestions to improve the idea?

By applying the Intellectual Standards, with all of their questions, to our thoughts and thought process, we can develop critical thinking skills. If you are thinking to yourself that those sound easy, try it. Try examining a single thought for clarity, accuracy, precision, relevance, depth, breadth, logic, and fairness. Some of the categories are easier than others, right? Now critically examine why some categories are easier or harder to consider about the idea. Now apply the Standards to the reasons you came up with as why some standards are easier or harder. Get the picture? At each step, one needs to use the standards all over again. That is because the basis of all logical thinking is sequential thought. Dr. Albrecht explains sequential thinking as a process of “taking the important ideas, facts, and conclusions involved in a problem and arranging them in a chain-like progression that takes on a [new] meaning in and of itself.” This sequential thinking allows one to build a chain from the beginning idea all the way to the final solution that is easy to follow. At each point in the chain, the solution should be getting better as more questions are answered and dealt with. Does this process remind you of any other process, say like one where a team works on a solution to a challenge over several months?

While developing critical thinking as a mental process may be hard work, it is a vital. Logic is the foundation for all mathematics; everything from counting change to calculus relies upon the ability to think sequentially. Not only does it provide a method to arrive at a solution, but critical thinking can also empower an individual to try harder to understand and explain the methods used to arrive at an answer. Instead of just giving up and answering “it’s too difficult”, a person is more likely to use those critical thinking skills to figure out how someone came to that answer. Dr. Syed summarized the importance of critical thinking as “what is lacking [in our information driven society] is the ability to evaluate ideas in a constructive manner.” We seem to be experiencing information overload, because people do not have the critical thinking skills to sort and evaluate all the new concepts taken in through all the different types of media. But, being able to examine information and come to an accurate, clear, reasonable, precise, relevant, fair, and expansive conclusion based on that information allows an individual to make good choices for not only the present situation, but also the future.

Now what does all of this have to do with DI? Try asking yourself the following questions.  Are there any ways that critical thinking and creative thinking are connected?  How can your team use the Intellectual Standards to focus all of your unique ideas?  Think I am wrong and DI is only about creative thinking? Try checking out the DI program materials. I’ll tell you more about DI and critical thinking, next week at the same creative time, same creative channel.

Post written by Alisha Heisterkamp, Co-Affiliate Director

 

Image courtesy of Salvatore Vuono/ FreeDigitalPhotos.net

 Resources:

Paul, Richard. “Critical Thinking in Every Domain of Knowledge and Belief.” Center for Critical Thinking. 27th Annual International Conference on Critical Thinking Keynote Address. 23 July 2007. http://www.criticalthinking.org/

 Albrecht, Karl. Brain Building: Easy Games to Develop Your Problem Solving Skills. Prentice Hall Trade: 1992.

 Syed, Ibrahim B. “Critical Thinking.” Islamic Research Foundation International. http://www.irfi.org/articles/articles_101_150/critical_thinking.htm

Share

The Value of Games

 team support  Comments Off
Nov 012011
 

Playing a game is the voluntary attempt to overcome unnecessary obstacles—Bernard Suits

 

Contrary to what popular media or exasperated parents may say, playing games can be a valuable experience. At least that is the claim contended by Jane McGonigal in Reality is Broken: Why Games Make Us Better and How They Can Change the World. While this blog is by no means a complete review of McGonigal’s new book, we will cover and discuss some of her major points.

 According to McGonigal, all games have four defining elements.

  1. Goal: a specific outcome that all players work to achieve which provides a sense of purpose.
  2. Rules: place limitations on the players, forcing them to foster strategic and creative thinking.
  3. Feedback: a system that informs just how close the players are to achieving the Goal and so promises the goal is achievable and motivates the players to achieve it.
  4. Voluntary Participation: players knowingly and willingly accept the other core elements which in turn provides common ground and establishes the hard work as an enjoyable activity.

As you can see by the core elements, games enable players to learn and practice different skill sets. Playing games helps players develop a sense of purpose, think in creative and strategic ways, come to understand achievable goals, become motivated to attempt those achievements, find common ground with others, and recognize the challenging work as worthwhile.

But the core elements aren’t the only ways games are beneficial. McGonigal explains how games can optimize human experiences by activating extreme positive emotions unlikely to be experienced in normal life. In our everyday lives, I doubt any of us usually do extraordinary feats such as slaying a dragon or single handedly saving thousands of people, but in games it is possible. Accomplishing that amazing feat can make us feel intense feelings of enjoyment and achievement which encourage us to try to do other extraordinary feats including in real life. Games can also allow us to strengthen our social connectedness by letting us collaborate for longer periods of time and take risks. Because we engage in games in safe environments, we are willing to practice assessing risk versus reward situations and taking risks. We also tend to engage in such fun and safe activities for longer periods of time; giving us more time to try out these new skills. Additionally, games have the potential to save the world by bringing thousands of people together to solve real-world problems pro-bono. In fact, gamers already have: Gamers Solve Molecular Puzzle that Baffled Scientists

So what does any of this have to do with the Destination ImagiNation® program? According to the definition of a game, Destination ImagiNation is one. By participating in DI, team members are trying new and different ideas, skills, and situations that will help them in life. More than that, playing games can help your teams develop and learn skills necessary for DI. For example, playing games can help the team practice deciding if they should go with an untested but unique idea or with a standard one known to constantly work. Encourage your teams to play creative, teamwork, or problem solving based games, such as Taboo or Catch Phrase!, and puzzle games such as Minesweeper, Qwirkle, or Xactika. For more ideas on what other fun things to do with your team check out ”12 Summer Tips” (I promise they are still good even if it’s no longer summer).

For more information about the potential of games not discussed here, check out Jane McGonigal’s book, Reality is Broken.

Also check out this video by Aaron Dignan about the importance of play: How to Use Games to Excel at Life and Work

 

Post Written by Alisha Heisterkamp, Co-Affiliate Director

Share
Sep 272011
 

The Executive Summary for the 2010-11 Season is now posted under the Board Reports. Go HERE to read.

Share
Sep 262011
 

Do you remember when your mom told you to not eat the glue? I will assume that you know what substance she was referring to (and that you did not in fact eat it). But, can you give me a definition of glue? The general definition of glue is “any fluid adhesive,” yet there is not a single component that is common to all glues. Given the actually wide and varied category of adhesives referred to as glue, let’s just focus on some commonly used types.

With a name like “super” glue, one tends to expect a lot from this acrylic resin. I am sure more than just one team member has super glued their fingers together or to some other object. Super glue has so much tack (stickiness) due to the long, strong bonds it forms with ions in water. Super glue can work with a bunch of different materials, because water is present in most everything. However, it is strongest when bonding metal to metal. Speed is another key factor in the “super” qualities of this adhesive. It takes merely a few seconds to bond surfaces together. So how strong is it? Check THIS out.

Another favorite with our creative problem solvers is hot glue. Officially known as hot melt adhesive, hot glue needs a heat source (usually served by a hot glue gun) to cause the solid adhesive to become fluid. The hot glue is heated to temperatures between 250oF and 380oF. The hotter the glue becomes, the stronger the bond will be. Yet, lower temperature glues are better for delicate materials. Hot glue has high viscosity (thickness) and high resistance, which makes it a good filler as well as an adhesive.

Polyvinyl acetate (PVA) is more commonly known as wood or carpenter’s glue. This glue is great for porous materials, because it can form “hooks” into the dimples in the material adding strength to the bond. PVA glues require pressure and time to set (to form the bond). If wood glue has had the proper pressure, time, and amount, then it is actually stronger than the wood is bonding.

One of the most important things in having a strong bond is the type of materials trying to be glued together. Finding the proper glue can make all the difference between something lasting all the way to Globals or something falling apart at the first practice. Carpenter’s glue would not work well bonding metal, for example. A resource worth checking out is “This to That”: this site will help you figure out the appropriate adhesive.

 Some other key factors to consider before you are busy gluing:

  • How much glue do you need? What good does glue coming out from the sides of the object do you?
  • How evenly did the glue get spread? Test gluing two surfaces to together with the same amount on each half and then test putting more glue on one half versus the other.
  • What safety precautions do you need to take? If using super glue, how will you un-glue your fingers? If using hot melt adhesive, how will you avoid burning?
  • Do you need new glue? Glues, like food, go bad relatively quickly after opening (think of your cereal or chips going stale if the package is left open). Old glue is going to provide weaker bonds than fresh glue.

 And one more thing: glue does not taste good, so don’t even try to eat it.

                                                                                                  Post written by Alisha Heisterkamp, Co-Affiliate Director

 

Resources

“Hot Glue”. Absolute Astronomy. http://www.absoluteastronomy.com/topics/Hot_glue

“10 Fun Facts About Super Glue”. Super Glue Corporation. http://www.supergluecorp.com/blog/2010/05/17/10-fun-facts-about-super-glue/

“Glue Strength”. Woodworking Tips. http://www.woodworkingtips.com/etips/etip40.html

Share
 

One of the many reasons to love creative problem-solving is because of the imaginative application of materials. Where else do you regularly see objects that were designed transport sewage used as a part of sets, props, costumes, structures, and so much more? If you haven’t guessed already, I am talking about polyvinyl chloride, more commonly known as PVC, pipes. PVC was reported discovered as early as 1835, but it was not until 1932 the first PVC tubes were produced and used in water supply and waste water transportation. These tubes can be found in many local hardware stores, but did you know there are a few different types of PVC pipes? It is these varieties that we should more closely examine, so you can pick the PVC pipe that best fits your creative needs.

But, before looking more closely at the varieties, let’s first look at PVC in general. PVC is a thermoplastic material that can consist of many different compounds and ingredients, but the major component of every PVC compound is the polyvinyl chloride resin. Without the PVC resin, the plastic material isn’t PVC. It is this resin that gives the piping its ability to withstand most chemicals and contributes to the pipe’s overall strength. In fact, PVC has a tensile strength (a material’s resistance to breaking under tension) of approximately 7,500 pounds per square inch. Comparatively, balsa wood can support about 2,000 pounds per square inch. The Rockwell hardness of PVC ranges from 110 to 120 whereas steel had a Rockwell harness rating of 150. To determine the hardness, the Rockwell test indents the text material with a diamond or steel tip and calculates the depth of penetration and the amount of force needed to indent the material. PVC is a safe material in terms of flammability as it will extinguish itself.

Now that you have a feel of general properties PVC, let’s look at the specific types. There are primarily three types: modified PVC (PVC-M), oriented PVC (PVC-O) or high strength PVS (HSPVC), and chlorinated PVC (CPVC) or un-plasticized PVC (PVC-U). Modified PVC improved rigidity and impact toughness from the original PVC design due to the modifiers added. There are few different modifiers that are being used in this type, but there are only small differences between modifiers and so PVC-M pipes have the same properties. High strength PVC has oriented vinyl chloride molecular chains, so that all the molecules run in the same direction. The orientation enhances the pipe’s properties including strength. Chlorinated and un-plasticized PVC are technically two different products with the only difference being the increased amount of chlorine in CPVC which has the added benefit of being able to withstand higher temperatures due to the increase. Otherwise, CPVC and PVC-U have essentially the same properties, especially in terms of the hardness and tensile strength.

So how do all three types compare?

-       HSPVC has twice the tensile strength of PVC-M and PVC-M has slightly less tensile strength than CPVC.

-       HSPVC and PVC-M are reliably tough in all realistic circumstances and handle stress well. CPVC can become brittle in less than ideal circumstances and cannot handle as much stress.

-       Due to the consistent performance of HSPVC and PVC-M, these types are deemed to be very safe for consumer use.

-       CPVC and PVC-M pipes can be connected by rubber-ring PVC joints or solvent-cement PVC joints. HSPVC should not be connected by solvent joints and only has rubber-ring oriented PVC joints available.

-       HSPVC has the highest modulus of elasticity when being used in the same direction of the orientation. When flexing the opposite direction of the HSPVC orientation, it has the same elasticity value as CPVC with PVC-M having a marginally lower value. Modulus of elasticity refers to the mathematic ratio of how much stress or load a material can hold and the strain (amount of flexing) the material does. In other words, the higher the modulus of elasticity value means the stiffer the material will be. The rate of creep (deformation of pipe) and the recovery (the PVC flexing back to original shape) is also dependent on the length of time of the applied load and the temperature. PVC will deform more quickly the longer the load is applied to the pipe and the hotter the temperature is around the pipe. However, that speed of deformation is relative to the type of PVC being used. So, while HSPVC will deform more quickly when subjected to a heavy load and hot temperatures, it will not creep nearly as much as PVC-M.

What variety of PVC (if any) best fits your creative needs? Do you need a pipe that stays strong and can hold a lot of weight? Or do you need a tube that can bend? How will you connect the PVC pipe? As you begin to work out your solutions, try to figure out what properties you want to see in your materials!

Post written by Alisha Heisterkamp, Co-Affiliate Director

Resources

“PVC Pressure Pipe & Fittings: Technical Manual”. Vinidex Systems and Solutions. http://www.vinidex.com.au/files//technical_notes/technical_design_manuals/technical_manual_pvc_pressure_pipe_and_fittings/VIN014_PVC_Technical_Manual_2011.pdf

“Superior Quality Piping for a Wide Range of Applications”. Harvel Plastics. http://www.harvel.com/piping-pvc.asp

Walker, Robert. “The Early History of PVC Pipe”. Uni-Bell PVC Pipe Association. http://www.sewerhistory.org/articles/compon/pdfs/pvc_history.pdf

Share
© 2010-2011 Students for a Creative Iowa Suffusion theme by Sayontan Sinha