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Jugando a este juego de estrategia, los chicos desarrollan su entendimiento sobre cuadrados, área, y perímetro. En su turno, cada jugador hace una línea entre dos punto contiguos en la cuadrícula.

In this online interactive challenge, learners choose items to represent the Earth or solar system, then determine other items to represent the Moon, or Milky Way based on their relative size.

In this activity, learners sort and count different colored plastic dinosaurs by various attributes including tail length, whether or not the dinosaurs have horns, etc.

This assortment of mathematical games can be played while traveling.

Pairs of learners play the roles of programmer and robot. The programmer gives specific directions to the robot to accomplish a simple task (e.g. walk across the room and pick up a pencil).

In this activity about states of matter, learners get to witness firsthand the awesome power of air pressure. They watch as an ordinary soda can is crushed by invisible forces.

In this activity, learners simulate the behavior of the atmosphere.

In this activity, learners compare their own strength to ants through a series of physical tests.

In this math lesson, learners investigate fractions by playing a game.

In this activity, Christina Elson, an archaeologist from the American Museum of Natural History, guides learners as they investigate an "artifact" and record their observations in a field journal.

In this online activity, learners role-play as medics, treating a patient with missing organs. Learners select different organs, then drag them into the proper location in the patient's body.

In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

In this online game, learners test their skills of categorization.

How much can you do in one minute? In this activity, learners estimate how many times a partner can complete a task (like writing their name or jumping jacks) in one minute.

This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.