Exploratorium
Blue Sky
Use a container full of water as a prism and show that as light is bent, the individual colors from different wavelengths become visible. This explains why the sky appears to be blue midday, and why as the sun nears the horizon, it looks...
Federal Reserve Bank
The Rising Cost of College: Tuition, Financial Aid, and Price Discrimination
Are average college tuition and fees really rising in the United States? Here is a fascinating take on the rising cost of college tuition and how price discrimination may explain what is often seen as an insurmountable cost for higher...
E Reading Worksheets
Fact and Opinion - Worksheet: 2
After reading a statement, learners decide if it is a fact or opinion. Then, they write a sentence explaining how they know their answer is correct. The sheet contains 25 fact and opinion sentences.
K12 Reader
Visual Clues
Whether you realize it or not, reading an image and reading a text require similar skills, including the ability to make inferences. For this simple worksheet, children look at a picture of a snowy winter day and answer a series of...
Polar Trec
Talk Story: A Native Way of Knowing
The steps of the scientific method examine a problem, make a prediction, and attempt to solve the problem—similar to the path most stories take. In the activity, individuals see how stories can explain natural events similar to the way...
Soft Schools
Metaphor and Similes in Literature: A Challenge
After identifying the similes and metaphors in a series of lines from poems, individuals then explain what is being compared and the characteristics the two items share.
Illustrative Mathematics
The Florist Shop
A real-world approach to common multiples asks learners to find different groups of flowers based on their multiples. Useable as a class activity or independent exercise, they will have to organize their thoughts to explain the totals of...
Sharp School
Newton’s Laws of Motion Project
After a review of all three of Newton's laws, physical scientists complete a choice project. They can create a book in which they collect pictures where the laws of motion are depicted, produce a PowerPoint presentation, or produce a...
Odegaard Writing & Research Center
Strong Body Paragraphs
Here's a handy, seven-step guide to crafting good paragraphs in support of a claim. The steps are clearly explained and examples provided.
Minnesota Literacy Council
Scientific Method
Here is a resource with a descriptive approach to explaining the scientific method. It's simple, but effective for both introduction and reinforcement of this concept.
It's About Time
Special Relativity
According to Einstein's Theory of Special Relativity, time moves slower when you're working. That's not quite what it says, and in a hands-on lesson, pupils learn the actual theory. Scholars plot the half life of muons, then compare it...
Illustrative Mathematics
Fraction Equivalence
Why is six-tenths equivalent to sixty-hundredths? This is the question learners are tasked to explain in writing as well as with a picture.
Curated OER
Identifying and Explaining Reactions
Introduce high schoolers to chemical reactions with this series of activities. In a little over an hour, scientists observe four gas-producing reactions: the combination of hydrochloric acid and sodium hydroxide, placing pasta in...
Curated OER
Amanda Bean's Amazing Dream
Use the book Amanda Bean's Amazing Dream to inspire your learners to solve and create multiplication word problems. After listening to the story, they solve two "which is more" problems. They explain their thinking with images, words, or...
Curated OER
Explaining the equation for a circle
By first starting with an explicit example of a radius and center point, this challenging lesson tries to help high schoolers gain an understanding of the Pythagorean theorem and the equation of a circle. Once they have accomplished the...
Federal Reserve Bank
Quantitative Easing Explained
Dig deeper into the financial crisis of 2008 in the United States and actions taken by the federal government, including the bailouts and purchase of institutions as Fannie Mae and Freddie Mac, to bolster financial market conditions.
Fluence Learning
Divide Shapes
Let's partition rectangles into equal parts. Assess learners on their ability to divide shapes into equal parts, and their ability to explain their thinking.
Cold Spring Harbor Laboratory
Mendelian Genetics Cannot Fully Explain Human Health and Behavior
The breakthrough of Mendelian genetics solved many puzzles for biologists. Then, scientists decided to apply the theory to human behavior. Learn the story and struggle of finding a genetic explanation for hobbies, interests, and mental...
Cold Spring Harbor Laboratory
Master Genes Control Basic Body Plans
Have you ever been so tired you missed a major announcement? Eric Wieschaus woke to a call explaining he won the Nobel Prize, but he thought it was just a dream until Christiane Nusslein-Volhard, a co-winner, explained it to him later...
Stanford University
Kent State
Why did a peaceful student protest end in disaster? Young historians explain the impact of the Kent State shooting. Academics analyze a photo of the Kent State shooting and explain the significance of the event by completing short answer...
Curated OER
Odd or Even
Children are told that an odd number is one that does not have a partner and an even number is one that has a partner. It's not the way I would explain it, but no matter, the activity and worksheet are still good. Children analyze each...
Illustrative Mathematics
Multiples and Common Multiples
Learners are asked to find multiples and common multiples of two numbers. They must take their findings and find a pattern between the numbers and explain their reasoning. Use this resource with The Florist Shop activity in this series...
Illustrative Mathematics
Modeling with a Linear Function
Here is a well-designed resource that provides five yes-or-no questions which model different situations with linear functions. It makes a good pre-test for the beginning of the unit. The purpose is to elicit common misconceptions of...
Scholastic
Study Jams! Food Chains
Rhinozilla is Mia's bearded dragon and the focus of this lesson on energy flow in an ecosystem. She uses him to explain the energy pyramid, from producers through third level consumers, and she likens the food chain to a video game. Mia...
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