This short video and interactive assessment activity is designed to teach fifth graders about multi-step compound unit subtraction - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about multi-directional conversions.

This short video and interactive assessment activity is designed to teach second graders about multiplying lengths (english units).

Students solve problems and choose three other two-digit numbers between 10 and 100 multiplying each of them by 10 to the first power, 10 to the second power, and 10 to the third power. Students explain the pattern they notice in the product when multiplying a number by powers of 10.

This lesson unit is intended to help teachers assess how well students are able to: interpret a situation and represent the constraints and variables mathematically; select appropriate mathematical methods to use; explore the effects of systematically varying the constraints; interpret and evaluate the data generated and identify the optimum case, checking it for confirmation; and communicate their reasoning clearly.

This challenging problem and brainteaser gives students an opportunity to compose and decompose polygons to make rectangles.

This short video and interactive assessment activity is designed to give fifth graders an overview of conversion among units of measure for capacity (english units).

For this lesson, students use tiles and grid paper to draw rectangles and record the perimeter and area of each rectangle.

For this task, students find the volume and surface of rectangular prisms and devise and use problem solving strategies to explore situations mathematically.

This resource contains a link to an interactive whiteboard activity and other various resources for determining perimeter and area.

This short video and interactive assessment activity is designed to teach second graders an overview of perimeter.

The purpose of this task is for students to select 2 numbers from a set of 3 that sum to 9. The task can be completed for sums equaling any number. Teachers may choose to ask students to write the simple equations they select.

In this lesson, students recognize angle measures as additive and solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems.

Students draw a robot on centimeter grid paper that meets the specified criteria and calculates the area of each body part and the total area of their robot.

This lesson unit is intended to help teachers assess how well students: are able to use frequency graphs to identify a range of measures and make sense of this data in a real-world context; and understand that a large number of data points allow a frequency graph to be approximated by a continuous distribution.

This lesson unit is intended to help teachers assess how well students are able to interpret data using frequency graphs and box plots. In particular this unit aims to identify and help students who have difficulty figuring out the data points and spread of data from frequency graphs and box plots. It is advisable to use the lesson: Representing Data 1: Frequency Graphs, before this one.

Students will demonstrate fluency with addition, within 100, by flexibly using strategies based on place value. Students will also solve problems involving dollars.

Students will measure footprints to determine how much longer one is than the other using 2 different units of measure.

Students will label an analog clock to the nearest 5 minutes, represent time by drawing hands on the clock, and determine if the time of day is a.m. or p.m.