101 Questions
Dueling Discounts
What a bargain—an informative, free resource! Given prices of several objects, learners determine whether 20 percent off or $20 off would be a better bargain. They use the results to come up with a generalization of the situation.
Penguin Books
An Educator's Guide to The Green Glass Sea by Ellen Klages
A lot of secrecy shrouded the creation of the atomic bomb. Readers uncover some of that secrecy using an educator's guide for the novel The Green Glass Sea. Three weeks of lesson plans feature discussion questions and reading...
Exploratorium
Traveling Networks
Show your class the path to understanding graph theory. Scholars learn about basic graph theory using an activity based on the Bridges of Konigberg problem. They draw networks on the playground and decide whether it is possible to travel...
Curated OER
Three Arts in Retrograde
Learners make connections between music, the other arts, and other curricular areas. They compare characteristics of two or more arts within a particular historical period or style and cite examples from various cultures.
Curated OER
Lesson 4 Activity 1: Mapping the Third Dimension
Students work in pairs to construct a simple stereoscope.
Harvard University
The Nouns of Geometry
Socratic questioning to teach Euclidean geometry? "The Nouns of Geometry," followed by "The Verbs of Geometry," and the misfit, "A Beginner's Story - The Equilateral Triangle" are designed to encourage learners to explore various topics...
101 Questions
Coin Counting
Cash in on a great resource. After watching a video of a coin counter, pupils estimate the number of coins and the amount of money they see. They then use additional given information and systems of equations to find the actual values.
Curated OER
The Built Environment-An Integrating Theme
Students observe, record, and present knowledge of their local built environment while conducting a walking tour of their community. They develop written and photo journals, drawings, time lines, graphs, and charts to engage in...
Curated OER
African Americans in Science
Young scholars explore the careers of prominent African Americans in science, mathematics, and technology. They use The Faces of Science: African Americans in the Sciences website, which includes profiles of past and present African...
Curated OER
Fractals Forever or Obvious and Hidden Order
Students discuss ways computers use properties of similar figures to generate scale models and create scenes. they describe patterns they have seen on a fern, pineapple, or pinecone. Students research Benoit mandebrot, H. von Koch and...
Curated OER
Flight Home
Students experiment to investigate the role in fixed-wing flight. They watch as air and water flow around surfaces to examine the dynamics of airflow around an aircraft wing.
Curated OER
Math: Are They the Same - or Knot?
Pupils discover the equivalence between knots and math through a manipulative exploration. In pairs, they select three sets of identical knots and change their forms without breaking the knots apart. Students pass them along to the next...
Curated OER
The Hopes of Our Ancestors: The Impact of Immigration on America
Students research the immigration of America. In this American immigration lesson, students complete a unit of activities to learn about American immigration.
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