Teachers, save “Counting Collections (triangles)” to assign it to your class.

1. Click 2. Estimate (guess) how many triangles you have in your head 3. Decide how you are going to count (shape, size, color, 1s, 2s, 3s, 5s, 10s) 4. Sort and count your triangles 5. Label your groups 6. Write the total amount **The rest of the directions are OPTIONAL** 7. Write the amount of groups (hundreds, tens, ones) 8. Mentally add 10 to your total and write the answer 9. Mentally subtract 10 from your total and write the answer