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This lesson focuses on how materials behave differently as their surface area increases.

This activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships.

In this fun hands-on activity, learners whip up a batch of cyber-dough (play dough) using math for measurements.

In this math lesson, learners use the setting of a flower-making fundraiser to explore a variety of patterns. Learners examine the patterns in a flower design made of triangles surrounding a square.

In this math puzzle game, learners work together to use algebraic reasoning and fun clues for solving word puzzles.

In this activity, learners explore engineering package designs that meet the needs of safely shipping a product.

This activity helps learners learn about math through a real-world scenario. Three friends are baking cookies for their school’s bake sale.

This is a web activity about simple machines. Learners will explore a lawn mower and identify six different simple machines which work together to help make our lives easier.

This activity introduces the idea of "divide and conquer" using a fictitious but serious problem--a pair of dirty socks has accidentally been wrapped in one of the presents that Santa is about to deli

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

In this math lesson, learners make estimates to analyze the number of apples per acre, and visualize the magnitude of one million.

In this activity about the relationship between food and energy (page 8 of PDF), learners estimate average daily baseline energy (Calorie) needs and energy needs for different levels of activity.

This is a game that is sure to sharpen players' basic math skills. Players must use four randomly selected numbers to create an equation that equals a fifth number.

In this physics activity, learners assemble and/or investigate a pendulum "snake." Several large steel hex-nuts are suspended on strings of successively increasing length to form a series of pendulums

In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

This is an online activity about simple machines. Learners will try their hand at putting these amazing devices to work. They will use several simple machines to help "build" a tree house.

In this math activity, learners play a card game to practice adding coins quickly, just like a banker. First, learners create coin cards. Next, the cards are dealt to each player.

These puzzles use four colors of socks in a drawer to get learners thinking algebraically.

In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.