Page 12 - Kindergarten.indd

Step 3: Distribute Math Geoboards and 2 rubber bands to each student.

Step 4: Randomly pick one ping-pong ball from the shoe box and show it to the
students. Tell the students to create the angle using the rubber bands, a protractor, and

their Math Geoboard.

Step 5: Instruct the students to hold up their Math Geoboards when they are done
creating the angle.

Step 6: Check the students’ Math Geoboards to see if everyone was able to correctly
construct the angle.

Step 7: Tell the students to clear their Math Geoboards.

Step 8: Repeat Steps 4 to 7 until all the ping-pong balls are drawn from the shoe box.

(1) Explain when to use half circle protractors vs. full circle protractors.

(2) Explain why a “one degree angle” is defined as an angle that turns 1/360 of a circle.

(3) Calculate the fractions for the following angle measurements: 30, 60, 90, 120,
150, 180, 210, 240, 270, 300, 330, and 360. Explain how the calculations are
made.

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