Engaging Students with Electrochemistry… and Goldenrod Paper


Educational Innovations Blogby Nancy Foote

I’m in love with goldenrod paper.  I’ve loved it for a long time.  In my never-ending quest to emotionally entangle my students in the content of our science curriculum, Color-Changing Goldenrod Paper provides a long-lasting entanglement.

If you’ve never done the bloody handprint goldenrod paper demo with your students, you are truly missing out—and so are they)!  This is the most engaging “engage” part of the 5 E’s I’ve ever experienced.  I like to do the bloody handprint demo around Halloween, but we don’t do acid/base chemistry until February.  That’s a long time to wonder, ponder and try to figure out exactly what is happening.  But that’s for another blog post.

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Using Growing Spheres for 3D Modeling


Using Growing Spheres for 3D Modeling - Educational Innovations Blogby Jen Donaldson

In my classroom, I’ve devised two new uses for Growing Spheres which help students have a better grasp on some otherwise complicated science concepts.  

These small spheres are a wonderful way to make the invisible VISIBLE—in three dimensions!

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The Chemistry of Currency


Dr. Kenneth Lyle, Duke University Department of Chemistryby Gabrielle Hodgins and Dr. Kenneth Lyle, Duke University, Durham NC

The wonders of magnetic ink!

INTRODUCTION

Demonstrating the magnetic ink used in printing US currency has proven to engage audiences of all ages because of its relevance to everyday life.  Nearly everyone has used machines that distribute and/or accept currency but few understand how the machines distinguish between the various denominations.  The key is in the face of each denomination.  Magnetic ink is used in the printing of the currency.  Each denomination has a different face and, therefore, a different magnetic signature.  Similar to a bar code reader, the machines recognize the denomination by its magnetic signature.  A strong magnet, such as a neodymium magnet, can be used to demonstrate the magnetic character of US currency.

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Hydrophilic Polymers TV


EI TV - Educational Innovations BlogIf a picture is worth 1,000 words, a video is surely worth a few million.  Especially when it comes to scientific explanations, a video is a wonderful tool for conveying information to your students in a visual, easy-to-follow manner.

The videos below offer you and your students a glimpse into the world of hydrophilic polymers—where they are today, what new discoveries we’ve made, and where we are headed in the future.

Enjoy!  If you find a video on hydrophilic polymers that you’d like to share with us, please leave a comment!

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Hydrophilic Polymers Lesson


Lesson - Educational Innovations BlogHydrophilic superabsorbent polymers are so much fun to use in the classroom.  Young and older students alike love working with Growing Spheres that expand by more than 300 times their original size.  And who doesn’t love an avalanche of Instant Snow?

We know that the best lessons are those that keep your students engaged in genuine, hands-on scientific exploration.  We believe that students learn more when they’re having FUN… and that’s precisely what happens when you bring any hydrophilic material into your classroom.

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