This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers up to 20).
This short video and interactive assessment activity is designed to teach fourth graders about subtraction: completing the subtraction sentence.
This short video and interactive assessment activity is designed to teach third graders about subtraction: completing the subtraction sentence.
This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers up to 10).
This short video and interactive assessment activity is designed to teach second graders about subtracting by counting backward with pictures.
This short video and interactive assessment activity is designed to give fourth graders an overview of addition (sums to 1,000).
This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 1,000).
This short video and interactive assessment activity is designed to teach third graders an overview of addition (sums to 1,000).
The goal of this task is to help students understand the commutative property of addition by examining the addition facts for single digit numbers. This is important as it gives students a chance, at a young age, to do more than memorize these arithmetic facts which they will use throughout their education.
The purpose of this task is to help students develop fluency with addition facts to 10. The focus in developing fluency should be more than the internalization of facts but on supporting students' natural development of number sense so that students are able to solve computations flexibly and efficiently using their understanding of relationships between numbers.
This instructional task requires students to add four numbers to find the solution.
In this video segment from Cyberchase, Harry must adjust his dinner budget after his cousin, Harry, unexpectedly decides to join him on his date
Students develop a physical understanding for the meaning of equality by trying to find equal lengths using rods.
This task helps students broaden and deepen their understanding of the equals sign and equality.