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### Turtle Pond

Pre-K-2, 3-5, 6-8

Estimate length and angle measure while guiding a turtle to a pond using computer commands.### Two Terrains

9-12

Use this applet to determine the best path for a vehicle that can't go as fast when it travels off‑road.### Vector Investigation – Boat to Island

6-8, 9-12

This tool shows vector addition by a boat going through a current to get to a target.### Adjustable Spinner

Pre-K-2, 3-5, 6-8, 9-12

Use this tool to create a spinner to examine experimental and theoretical outcomes.### Bobbie Bear

Pre-K-2, 3-5

Use counting strategies to make outfits for Bobbie Bear with different colored shirts and pants.

Click here to play Bobbie Bear in Spanish.

### Box Plotter

3-5, 6-8, 9-12

Use this applet to create a customized box plot with your own data, or display a box plot of an included set of data.### Chairs

3-5, 6-8

This applet is used to explore the number of chairs needed when tables are rearranged in a restaurant.### Cube Nets

3-5, 6-8

This applet allows you to examine various two-dimensional figures to determine which ones can be folded into a cube.### Angle Sums

6-8

Explore the sum of the interior angle measures for various polygons using this tool.### Circle Tool

3-5, 6-8

This activity allows you to investigate the relationships between the
area and circumference of a circle to its radius and diameter.