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In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

In this activity (on pages 41-47 of PDF), learners explore tesselating geometric patterns (repeated shapes, similar to the art of M.C. Escher).

In this design challenge activity, learners explore the concept of biomimicry by using a natural organism's special features to design a new human object.

In this math lesson, learners are introduced to proportional reasoning through modeling, sharing, and questioning techniques.

In this activity about problem-solving, learners build a house for the Three Little Pigs using twenty straws and two index cards.

Use multiplication to help the aliens find out how much fuel they need to get their spacecrafts home.

In this interactive board game, learners "hire" different types of scientists to help canine character Ruff Ruffman solve unusual problems.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

In this classic memory game (on pages 37-45 of PDF), learners turn over tiles to reveal images on the back.

In this activity learners will build roller coasters and test them using small balls or marbles.

In this Cyberchase activity, learners use the numbers one through six to solve a puzzle.

This activity (on pages 21-32 of PDF) has learners act out several classic brain teasers.

In this math activity, challenge learners to make two equal rows from eight different paper strips. Learners can explore the many ways they can solve this problem.

Build your own Mini Mini Golf Course and learn about hands-on building and design, basic circuitry, motion modules and more!

In this activity (on pages 49-54 of PDF), learners play with tangrams, a set of triangles, squares and a parallelogram that can combine into a larger square as well as all sorts of other shapes.

In this activity, young learners use their sense of touch rather than sight to identify a mystery object in a bag. Learners take turns acting as "peekers" and "sensers" throughout the game.

In this activity, learners explore geometry and spatial relationships as they figure out how to arrange tables for a party.

In this activity, learners make a parachute out of tissue paper, tape, and string. Then, learners test their parachute to see how many paper clips it can carry.

In this hands-on activity, learners use toothpicks to build different triangles and squares and then use the toothpicks to build and solve some tricky shape puzzles.

In this fun activity about spiders, learners build and design a spider from cardstock, straw, string, and pipe cleaners.