Doubling
Doubling:
Student will double the numbers until they past the intended target. Once pass the target they will remove a group to reach the target. This can be used for multiplication and division.
Videos for Teachers
Important Information
What students might do:
What students might say:
"I know that 2 x 5 is 10 and 4 x 5 is double that so it is 20."
"I figured out what 2 x 8 was and then I knew I needed 2 more group of 8 which is just 16 + 16."