Education Development Center
Similar Triangles
Model geometric concepts through a hands-on approach. Learners apply similar triangle relationships to solve for an unknown side length. Before they find the solution, they describe the transformation to help identify corresponding sides.
Big Kid Science
Measuring Shadows Using an Ancient Method
How did ancient peoples determine the height of really tall objects? Young scientists and mathematicians explore the concept of using shadows to measure height in a hands-on experiment. Paired pupils measure shadows, then calculate the...
Education Development Center
Sum of Rational and Irrational is Irrational
Sometimes the indirect path is best. Scholars determine whether the sum of a rational number and an irrational number is irrational. Reading a transcript of a conversation between classmates leads to an indirect proof of this concept.
National Nanotechnology Infrastructure Network
What’s In Your Neighborhood?
Chart your way to an understanding of nanoscale. Using a Google map, learners estimate a radius around their location of 1,000 and 1,000,000 meters. Predicting what 1,000,000,000 meters would look like takes them off the charts!...
Heritage Foundation
Congress's Economic Powers
Join Congress as they assess their economic abilities for spending—and as they discover their limits. High schoolers use an educational resource to explore Congress's economic powers and learn to apply these concepts to their everyday...
CCSS Math Activities
Rolling for the Big One
Knowing math helps you win games. Learners apply conditional probability concepts in an engaging performance task. After playing a game in which players roll a 10-sided polyhedron and then try to place the digits to get the highest...
Purdue University
The Represented World: Recreational STEM
How are forces and motion important to a swing set? Scholars explore the concepts of force and motion using swing sets. In preparation for their own STEM design project, individuals take surveys and data from peers, complete labs on...
Curated OER
Probability Concepts (Practice 20.2)
In this probability worksheet, students solve 16 problems pertaining to probability and likely, less likely, certain and impossible outcomes.
Curated OER
Measurement Concepts
In this measurement worksheet, students solve 7 word problems and 1 multiple choice test-prep question. Students use non-standard classroom items to estimate and measure objects in order to solve the problems.
Curated OER
Science - "Why does it float?" - Exploring the Concept of Density
For this density worksheet, students read about density, volume and mass. They then use what they learned to answer the 8 questions on the page. The answers are on the last page.
Curated OER
Found Poems
Young scholars summarize articles found in the newspaper and use key concepts to write a poem. In this reading comprehension and writing lesson, students work with a partner to choose a current newspaper article. Key concepts and...
Curated OER
Electrons on the Move
Fourth graders study current electricity while constructing a simple electric circuit. They build a galvanic cell to examine the concepts of voltage, current and resistance.
Curated OER
The Artist As Entrepreneur: VARA-visual Artists Rights Act
Pupils read case studies of artists' lawsuits under the Visual Artists Rights Act and then discuss the merits of fictitious cases where artists might consider a lawsuit. They predict the outcome of a lawsuit scenario and justify their...
Curated OER
Agriculture: Economics and Policy
Support your next lesson on Agriculture, economics, and policy with this presentation. Intended for use with a McGraw-Hill/Irwin textbook on Economics, this presentation notes key points regarding farming and economics in America....
Deliberating in a Democracy
Voting
Young scholars read about voting rights and compulsory voting in democracies. For this voting rights lesson plan, young scholars analyze the reasons for supporting and opposing compulsory voting and discuss whether compulsory voting is...
Curated OER
Vocabulary Review: Government Terms
As your English language pupils learn about the government and vocabulary words commonly used when talking about the government, present them with this worksheet. There are eight multiple choice questions, and each vocabulary word is...
Curated OER
Technology, R&D, and Efficiency
For use in conjunction with the 2002 McGraw-Hill/Irwin US Economics text, this presentation highlights key points and important vocabulary. Specific economic concepts and theories, R & D expenditures, rate-of-return curve and...
Teach Engineering
Quantifying Refraction
Class members discover how mathematics can quantify the behavior of light waves with the fourth installment of a seven-part series that teaches future engineers about equations related to refraction, including the equation to...
Curated OER
English - "What can I say?" - Sharing Ideas
Prepare pupils to experience an authentic presentation. They will prepare themselves for giving speeches before their classmates. Then they discuss the introduction, body, and conclusion of a speech and then practice the concepts in...
Curated OER
Investigating Light
Learners study concepts associated with light. In this light lesson, students observe an demonstration by the teacher. They examine reflection and refraction of light and name things that reflect light and those that refract it. They...
Curated OER
Plumbing the Deep-Using Sound Waves to See
Students explore and learn about the concept of echolocation. In this echolocation lesson, students explore how animals and engineers use echolocation (seeing under water) and sound waves to look and hear things under the deep water.
Curated OER
Number Fun
Kindergarten counters can demonstrate their understanding of the concepts of the greatest number, the least number, and number sequencing on an illustrated two-page activity. There is even a problem that asks class members to color the...
Curated OER
Proportionally Speaking!
Pupils are introduced to the concept of proportions. In groups, they practice solving equations and identify the fraction and ratio as well. They complete a worksheet following the steps outlined to them to review the concept.
Curated OER
Physiological Adaptations
Students investigate the concepts of genetics and how it is tied to the variations found within different species and how it is tied to adaptations. They review the theory of evolution and factors found to help create variation. The...