Posts Tagged teachers

STEM Tuesday– Evolution– In the Classroom

Darwin’s Theory of Evolution and discovery of natural selection changed the way people viewed themselves and the world around them. The idea that organisms adapt over time to survive in their environment was groundbreaking. It contradicted what people had always assumed to be true. Many incredible books have been written to help students understand the importance of this discovery and how it influences our understanding of the world today. These books can be used as a springboard for classroom discussions and activities.

 

cover of the book "One Beetle Too Many," featuring an illustration of Charles Darwin peeking through leaves at insects

One Beetle Too Many: The Extraordinary Adventures of Charles Darwin by Kathryn Lasky and Matthew Trueman

This book does an excellent job of making Charles Darwin relatable to young readers. He was a child who loved all type of creatures, including insects and worms. He loved being outside and took great pride in his collections. Kids may see that they aren’t too different from Darwin, and that will keep them engaged throughout the entire book. The illustrations complement the text perfectly, and students will want to look closely to take in all the details.

 

 

 

 

Charles and Emma by Deborah Heiligman

Many biographies of Charles Darwin focus on his research and his time spent on the HMS Beagle. Charles and Emma, however, starts after that adventure is already over, when Charles is trying to decide if he should get married. The relationship between Charles and Emma was a loving one, but she, like many others at the time, had trouble accepting his Theory of Evolution. It completely contradicted peoples’ religious beliefs. This book explores Charles and Emma’s relationship and how that impacted his thinking and his work. Young readers will view Darwin through a different lens.

 

 

 

 

cover of the book "Evolution" featuring a multicolored chameleon on white background

Evolution: How Life Adapts to a Changing Environment with 25 Projects by Carla Mooney and Alexis Cornell

In this book, STEM Tuesday’s own Carla Mooney makes evolution accessible to middle grade readers. She clearly explains what it is, how we think it works, and how this ongoing process will affect the future of our planet. The thought provoking essential questions and subsequent activities give students hands on opportunities to discover how and why animal adaptations occur.

The following two activities were taken directly from this book and are ones I think students will especially enjoy.

 

 

Activity 1 – Create Your Own Animal

In this activity, students will create their own animal with useful adaptations. They will begin by considering the following questions.

  • Where does the animal live?
  • How much water is in the area?
  • What is the climate and weather like in this location?
  • What does the animal eat? What predators threaten the animal?

Using these details, students will create their animal. What does it look like? How does it behave? Have them write a paragraph describing their animal and its behaviors. Draw a picture of the animal. What adaptations does the animal have to help it better survive in its environment?

Now try this: Have students design another environment. Imagine their animal in the new environment. What features are useful for the animal in the new environment? What features are not helpful? If the animal stays in the new environment, what new adaptations do you predict will arise during many generations. Why?

 

Activity 2 – Darwin’s Finches

In this activity, students will demonstrate how different adaptations can help different birds collect food.

  1. Gather several objects that represent different types of seeds a bird might encounter, including large seeds, small seeds, dried beans, rice. etc.
  2. Find or design several “tools” that they can use to pick up the seeds. Ideas include forks, spoons, knives, chopsticks, tweezers, and straws. Students can also build their own tools.
  3. Using each tool, attempt to pick up each type of seed. Which tool works the best? What type of seed is the easiest to collect? Which tool is the least effective? Which seed is the hardest to collect? Do some tools work better with certain seeds and not others?

Now try this: Students will demonstrate the process of evolution by natural selection using the seeds and the tools. Using only one type of food, assign each of the tools to the students. Set a time limit and see how many they can collect with their assigned tool. After the time has expired, see which tools have collected the most food. Those that did not collect enough food will die out and be replaced by the top-performing tools. Have students repeat this process several times. What happens to the tools in the population? What was the role of natural selection in the outcome?

 

Peppered Moth Simulation

In this online game, students will see how camouflage protects moths through the eyes of a predator. Click here to access the game.

 

Speciation Video

Further explore the idea of speciation by having students watch this video from the Cornell Lab of Ornithology. Click here to access the video.

 

Hopefully, these books and activities will help students understand the Theory of Evolution and how it influences our understanding of the world today.

 

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Jenna Grodziki

Jenna Grodzicki is the author of more than twenty fiction and nonfiction children’s books. Her books include Wild Style: Amazing Animal Adornments (Millbrook Press 2020) and I See Sea Food: Sea Creatures That Look Like Food (Millbrook Press 2019), the winner of the 2020 Connecticut Book Award in the Young Readers Nonfiction Category. Jenna lives near the beach with her husband and two children. In addition to being a writer, she is also a library media specialist at a K-4 school. To learn more, visit her website at www.jennagrodzicki.com.

 

 

 

 

 

STEM Tuesday– The Science of Art– Author Interview with Karen Latchana Kenney

Welcome to STEM Tuesday: Author Interview, a repeating feature for the fourth Tuesday of every month. Go Science-Tech-Engineering-Math!

Today we’re interviewing Karen Latchana Kenney, author of FOLDING TECH: Using Origami and Nature to Revolutionize Technology. Booklist says, “From folded cranes to collapsible solar sails, this offering provides an enticing look at a unique STEAM crossover.”

Mary Kay Carson: How did you come to write Folding Tech?

Karen Latchana Kenney: My editor Domenica DiPiazza at Lerner Publishing approached me with this topic after watching the PBS documentary The Origami Revolution. I loved the idea of connecting art with technology and wanted to expand it even more. I had questions—what other influences could help engineers find new folding techniques? And why is folding technology so important—what is it used for?

I found that folding technology is important in space, due to the spatial and weight restrictions necessary for rockets to reach Earth’s escape velocity. So, to get large solar arrays needed to power telescopes into space, they had to be able to fold up compactly within a rocket’s body and then unfold efficiently (without direct human assistance) when in space. Another area where folding is important is inside the human body, where it is useful to have compact tools enter small wounds and then expand inside the body. Smaller wounds are not only more aesthetically desired, but they decrease healing time and possibilities for infections.

Folding Tech covers not only where folding technology is needed in our lives, but also the artistic and natural inspiration for new folding techniques and the mathematics behind different kinds of folds. I spoke with and researched mathematicians (like Tom Hull, professor at Western New England University), professional origamists (including Robert J. Lang, who’s worked on a foldable space telescope lens), software engineers, and entomologists. I also included folding activities for kids to try, such as the natural folding patterns created through a force folding technique developed by Biruta Kresling. It was especially fun to connect these ideas with developing technology, like deep-sea collection tools inspired by origami.

MKC: Anything special about the book you’d like us to know?

Karen: I really like the interactive nature of this book, with origami folding exercises to try and Lerner’s AR app. The app brings images to life, like NASA’s InSight Mars lander image in Chapter 5. It shows how the lander’s solar arrays unfold from their compact shape. It’s really cool!

MKC: Care to share a favorite research discovery from Folding Tech?

Karen: One of the most fascinating bits of research I found was related to the folding mechanisms of insect wings, particularly the study of ladybug wings. Beetles have these delicate and large wings compactly folded underneath hard elytra, which rapidly unfold (in less than 1/10th of a second!) when they want to take flight and escape predators. Because they are hidden under elytra, it was difficult to study their folded shapes and the ways they unfolded and then folded back again. The scientists could not take high-speed photographs or videos of the unfolding process.

source: Saito et al. (2017)

The solution came from someone not involved with the research—a secretary working with the researchers. She proposed replacing an elytron with a prosthetic made from UV-cured clear resin (commonly used in nail art). It worked, and the researchers were able to see and record how the wing unfolded and folded back again! They found that the wings’ veins stored energy like a spring when folded. That’s how the wings popped out so quickly to unfold. I love how a surprising idea from an unexpected source was key to solving this mystery. Here’s a diagram from the study that shows how ladybugs fold their wings.

MKC: Why do you choose to write STEM books?

Karen Latchana Kenney’s award-winning and star-reviewed books have been named a YALSA Quick Pick for Reluctant Readers, a 2015 Book of Note from the TriState Review Committee, a 2011 Editor’s Choice for School Library Connection, and Junior Library Guild selections. Visit her website or follow @KLatchanaKenney.

Karen: I love the curiosity and wonder inherent in working with STEM topics—the initial moment when scientists find the question they want to answer, the methodical experimentation and documentation they undergo to find clues to the mystery they want to solve, the collaboration across multiple disciplines needed to fully understand a problem, and often the surprising accidental discoveries scientists make when trying to find their answers.

Part of my interest in STEM is simply that I enjoy learning more about science and the natural world and writing about these topics helps me learn about unusual discoveries and scientific connections. I like seeing how concepts connect across multiple contexts—like the way ancient arts can influence space technology. Another big part of my interest in writing about STEM topics is my desire to promote respect and awe for the wonders of our world. I hope that my books will help kids have more respect for the environment and see what may have become mundane in the natural world in a new and exciting light. I hope these kinds of books initiate new questions that need to be solved by our future scientists.

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Your host is Mary Kay Carson, author of The River that Wolves Moved, Wildlife Ranger Action Guide, The Tornado ScientistAlexander Graham Bell for Kids, Mission to Pluto, and other nonfiction books for kids. @marykaycarson

STEM Tuesday– The Science of Art– Writing Tips and Resources

Quantities and Questions

The Science of Fashion book cover

Me, I like to analyze things. Pick them apart and put them back together again. And I’m not just talking about breaking into an old blender to see how it works. When I’m looking at a piece of writing, I do it too.

Literary analysis usually comes in the form of studying symbolism, figurative language, etc. But what if we go past the words and dive into some numbers? How can we quantify a piece of writing? And what might we learn from that?

 

Cool Paper Folding book cover

Counting Counts!

  1. Grab a book from this month’s theme list, flip open to any random 2-page spread and start counting.
  2. Start simple. How many paragraphs? Here’s what I found:
  • Folding Tech 6.5
  • Cool Paper Folding 3
  • The Science of Fashion 5

This simple activity brought up questions: Is each speech bubble considered a paragraph? What about each bullet point? Within each book, how consistent is this number from spread to spread? Comparing books, why might the number of paragraphs vary so much? What factors are involved in paragraph length?

And that might lead to another level of counting: How many sentences per paragraph?

  • Folding Tech 4
  • Cool Paper Folding 2
  • The Science of Fashion 3

Of course, that led to more questions: What’s the average on one spread? How much does it vary from spread to spread? From book to book? What factors might an author consider when making decisions (consciously or subconsciously) about where to break for another paragraph?

Folding Tech book coverThis analysis might lead us to dive even deeper: How many words per sentence?

Which might then lead us to: How many letters per word?

For the most authentic inquiry, I find that it is best to begin this analysis manually, but once a writer become curious about patterns across a book or between multiple books, the counting can become laborious. Time for some tools!

Check out your word processing program. I’ll bet you’ll find a word count feature and more. Snag a bit of text from a book and put that tech to work!

Compare that text to a similar portion from one of your own pieces of writing. In what ways are the quantities similar? Different? In what ways are the intended audiences similar? Different?

Visualize it!

As I was performing my analyses, I noticed that both Folding Tech: Using Origami and Nature to Revolutionize Technology and The Science of Fashion (Inquire Investigate) used another really cool tool that can be used for analysis: word clouds! I love the way these turn data into visuals.

Word cloud

  1. Find a word cloud generator online. Lots of options at https://coolinfographics.com/word-clouds Here’s one of this blog post.
  2. Create a word cloud in the shape of the topic of the text.
  3. What other fun ways can you analyze and visualize your writing?

Quantities and questions can lead to an entire realm of learning about writing. Try it yourself!

 


When not analyzing words written by others, Heather L. Montgomery writes books for kids who are wild about animals! Snag some text from her recent Who Gives a Poop? Surprising Science from One End to the Other to see what you can see! Learn more at www.HeatherLMontgomery.com