In this assessment task, students play a memory game and subtract within 20.

In this assessment task, students roll two dice then they write and solve an addition number sentence. Students also explain how they got the answer.

In this assessment task, students look at number cubes and write an addition equation to find the sum of each pair of number cubes.

This formative assessment determines students' fact fluency when adding and subtracting within 20.

This formative assessment determines students' fact fluency when adding and subtracting within 10.

This formative assessment determines students' fact fluency when adding and subtracting within 20.

The Common Core State Standards (CCSS) videos are designed to support states, schools, and teachers in the implementation of selected math standards. Each video is an audiovisual resource that focuses on one or more specific standards through examples and illustrations geared to enhancing understanding. The intent of each content-focused video is to clarify the meaning of the individual standard rather than to be a guide on how to teach each standard, although the examples can be adapted for instructional use.

In this assessment, students find which value for a variable makes the equations and inequalities true.

In this assessment, students find the value of an equation and then create 2 other equations that have an unknown variable with the same value as the solution from the previous equation they solved.

In this assessment, students explain why they agree or disagree with the value of the variable for each equation.

In this assessment, students find the value of an equation and then create 2 other equations that have an unknown variable with the same value as the solution from the previous equation they solved.

In this assessment, students are presented with an inequality and determine which statements and number lines can be represented by that inequality.

In this assessment task, students write inequalities for a real-world problem and represent them on a number line.

In this assessment task, students write inequalities for a real-world problem and represent them on a number line.

In this assessment, students write inequalities, represent them on a graph and recognize that inequalities can have infinite solutions.

In this assessment task, students write inequalities for a real-world problem and represent them on a number line.

In this assessment task, students write inequalities for a real-world problem and represent them on a number line.

In this assessment, students explain why an inequality can have more than one solution.

In this assessment, students use variables to represent quantities that change in relation to one another and use a function to solve problems.