Geoboard, by The Math Learning Center

Geoboard provides users with a digital version of this tool. With it, users can tap and drag a rubber band onto the board and then stretch it into place. As users add rubber bands, the shapes they can create will grow in complexity. With the buttons on the bottom of the screen, users can modify the geoboard so it becomes larger or circular, and includes numbers. In addition, once a shape is created, they can tap the “Fill” button to add color to a shape. Users can also tap the math function signs to access a calculator, and the “Marker” button to make annotations on the geoboard. To remove a rubber band, users have to tap it and then tap the “Trash Can” icon. If users wish to clear their entire board, they can tap the “Reset” button on the bottom left of the screen.

Instructional Ideas

1. Teachers can name a shape and have students create it on their geoboard. As they do, teachers can walk around the room to support students as needed.
2. Teachers can challenge students to make a certain shape on the geoboard using a specific amount of rubber bands. For example, teachers can have students make two rectangles with six rubber bands or two right triangles with four rubber bands.
3. Teachers can have students make shapes on their geoboard that are of certain units. For example, students will have to make a square that is 2×2 units.
4. Teachers can require students to create a shape on the geoboard and then find its area. As they work, students can use the calculator tool to support them.
5. After studying a structure (e.g., a building, bridge, or house), students can try to make an exact scaled model of it using this app.

Screenshots of Geoboard

Ratings for Geoboard

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