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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.

This is a lesson plan for an activity in which learners, playing the role of archeologists, use math concepts about number bases to decipher the Dresden Codex, an ancient Mayan document.

In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

Los Momentos de Mixing in Math son actividades de 5 a 10 minutos que mantienen a los chicos ocupados, aprendiendo sobre el mundo, y usando matemáticas por su cuenta.

In this activity, learners will explore how and why weight distribution works.

In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel.

Learners can program a compass to draw a circle by itself using a Pico Cricket, some Legos, and lots of tape! Pico Cricket is required.

This activity offers learners and their families several ways to raise their awareness together about home water.

Learners make their own simple slide rules out of paper and learn how they work.

In this activity, learners investigate the food, water, and space needs of common livestock animals.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).

In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems.

In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.