This short video and interactive assessment activity is designed to teach fourth graders about adding decimals - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about adding fractions with different denominators.

This short video and interactive assessment activity is designed to teach fifth graders about adding mixed numbers with common denominators.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying and dividing.

This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, multiplying and dividing.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying, and dividing with parentheses.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, and multiplying.

This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, and multiplying with parentheses.

This short video and interactive assessment activity is designed to teach fourth graders about adding unit lengths in one step (english units).

This short video and interactive assessment activity is designed to teach second graders about adding unit lengths in one step (english units).

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting.

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting.

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money with pictures in columns.

This is an interactive assessment and video designed to teach Adding and Subtracting (Numbers up to 20) - Word Problems to first graders.

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting terms (numbers to 100).

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting with parentheses.

This short video and interactive assessment activity is designed to teach fourth graders about addition: completing the addition sentence.

The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.