This short video and interactive assessment activity is designed to give fifth graders an overview of decimal multiplication.
This short video and interactive assessment activity is designed to teach first graders an overview of subtraction (numbers to 100).
This video lecture serves as a review of subtraction up to the number twenty for first graders.
This short video and interactive assessment activity is designed to teach second graders an overview of telling time to 1-minute intervals.
This short video and interactive assessment activity is designed to teach first graders an overview of telling time to quarter and hour.
This short video and interactive assessment activity is designed to give fourth graders an overview of - tenths.
The purpose of this task is for students to find the answer to a question in context that can be represented by fraction multiplication. This task is appropriate for either instruction or assessment depending on how it is used and where students are in their understanding of fraction multiplication.
The purpose of this task is to provide students with a situation in which it is natural for them to divide a unit fraction by a non-zero whole number.
This short video and interactive assessment activity is designed to teach second graders about fractions of a whole.
This short video and interactive assessment activity is designed to teach third graders about fraction of a whole.
The point of this task is to emphasize the grouping structure of the base-ten number system, and in particular the crucial fact that 10 tens make 1 hundred.
This short video and interactive assessment activity is designed to teach third graders about division patterns within the multiplication table.
This short video and interactive assessment activity is designed to teach fourth graders about patterns in division by 6, 7, 8, 9, 11, 12.
The goal of this task is to look for structure and identify patterns and then try to find the mathematical explanation for this. This problem examines the ''checkerboard'' pattern of even and odd numbers in a single digit multiplication table.
This task provides a context where it is appropriate for students to subtract fractions with a common denominator; it could be used for either assessment or instructional purposes.
This word problem requires students to use addition and subtraction and think about money.
This short video and interactive assessment activity is designed to teach third graders about perimeter in grid.
This short video and interactive assessment activity is designed to teach third graders about perimeter of squares and rectangles.
This short video and interactive assessment activity is designed to teach second graders an overview of perimeter.
These word problems represent the "Add To" contexts for addition and subtraction.