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Este Web site contiene links a 12 calendarios (12 meses). Cada mes contiene actividades sobre matemáticas.

In this math activity, learners make and explore patterns using the letters in their names, a grid, and some colors.

In this activity, learners will build the highest tower they can out of recycled materials.

Learners make a counting/estimating jar to exchange with friends or bring home.

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

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, learners explore how the area of Arctic sea ice has changed over recent years. First, learners graph the area of Arctic sea ice over time from 1979 to 2007.