Students work in pairs to measure length by lining up cubes along the longest side of an item. They count and record length by counting the number of cubes.
This task gives children an opportunity to subtract a three-digit number including a zero that requires regrouping. The solutions show how students can solve this problem before they have learned the traditional algorithm.
This task requires students to add tenths and hundredths.
The purpose of this task is to help students see the connection between aÖb and ab in a particular concrete example. The relationship between the division problem 3Ö8 and the fraction 3/8 is actually very subtle.
This task addresses the division problem 4Ö1/3.
This task provides a context for performing division of a whole number by a unit fraction. This problem is a "How many groups?'' example of division.
Students play a game in pairs to read and recognize numbers using a 100 chart.
This short video and interactive assessment activity is designed to teach third graders an overview of rectangles, squares, circles and triangles.
This short video and interactive assessment activity is designed to teach second graders an overview of rectangles, squares, circles and triangles.
This short video and interactive assessment activity is designed to give fifth graders an overview of rectangles, squares, circles and triangles.
This short video and interactive assessment activity is designed to teach first graders an overview of rectangles, squares, circles and triangles.
This short video and interactive assessment activity is designed to teach fourth graders about selecting the quotient using given statements.
This short video and interactive assessment activity is designed to teach fifth graders about selecting the quotient with the correct number of digits.
This is a video and assessment exercise aimed at helping first graders identify incorrect subtraction.
This short video and interactive assessment activity is designed to teach second graders about selecting the incorrect subtraction sentence (numbers up to 20).
This course features a video review and an interactive assessment activity for selecting the correct addition sequence. It is aimed at first graders.
This short video and interactive assessment activity is designed to teach second graders about selecting the correct addition sentence.
This short video and interactive assessment activity is designed to teach third graders about finding the incorrect equations.
This short video and interactive assessment activity is designed to teach fourth graders about identifyinging common factors.
This short video and interactive assessment activity is designed to teach second graders about identifying greater and lesser amounts.