This unit is to be used with second grade students to teach addition and subtraction strategies, or remediate with students needing extra practice.
This video was created by NCDPI. This video examines best practices and research related to developing computational fluency. Teaching strategies and tips are provided.
This resource is from NC2ML. It may not be remixed.This Standards Brief discusses strategies and representations second graders are taught for mult-digit addition and subtraction. This is a great reading to share during a professional development with teachers or to hand out during family math nights.
This resource is part of Tools4NCTeachers.
This task calls for students to solve an addition problem using a variety of equations. The task may be used for instruction or assessment purposes.
This resource is part of Tools4NCTeachers.
In this lesson students use the open number and various strategies to solve two-step story problems.
This resource is from Tools4NCTeachers. In this lesson, students will be figuring out the addends that add up to the correct sums. They will also be creating and solving equations with more than two addends.Extension and differentiation ideas are provided.
This resource is part of Tools4NCTeachers.
In this lesson, students solve a word problem using a strategy of choice and share the strategy to develop the concept of representing and solving problems involving addition and subtraction within 20. This problem type will likely provide an opportunity to explore the commutative property with students. This lesson format may be used with any problem type appropriate for the grade.
This resource is part of Tools4NCTeachers.
This task calls for students to solve an addition problem using a variety of equations. The task may be used for instruction or assessment purposes.
This resource is from Tools4NCTeachers. This file contains a set of 2 tasks (including scoring rubrics and student recording sheets). The tasks may be used for instruction or assessment. Each focuses on strategies for adding and subtracting within 20.Remix this resource to include student work samples or addtional tasks.
This resource is from Tools4NCTeachers. This is a set of five tasks, which may be used for instruction or assessment. Each file contains a separate task and rubric. Remix this resource to include extension ideas or addtional tasks.
This resource is part of Tools4NCTeachers.
In this lesson students use the open number line and various strategies to solve addition story problems.
This resource is from Tools4NCTeachers.This file contains sample anchor charts to create with students. Anchor charts are to be made with students, then displayed as a classroom reference. Parents may also benefit from seeing anchor charts, as they provide a snapshot into the math class.Remix this resource to include pictures of your own anchor charts.
This resource is part of Tools4NCTeachers.
In this lesson, students are introduced to the beaded number line as a tool to help them solve addition and subtraction problems within 20. This lesson is in two parts and may be taught over more than one day.
This resource is part of Tools4NCTeachers.
Students are asked to solve a real world problem, show their work using pictures, numbers or words, and record a matching equation. A scoring rubric is included. The task may be used for instructional or assessment purposes.
This resource is part of Tools4NCTeachers.
Students are asked to solve a real world problem, show their work using pictures, numbers or words, and record a matching equation. A scoring rubric is included. The task may be used for instructional or assessment purposes.
In this lesson, students use manipulatives to explore addition and subtraction situations. Math centers and center materials are also provided with this lesson.
This resource is from Tools4NCTeachers.A Common Formative Assessment (CFA) provides a snapshot of current student understanding. It serves as a checkpoint, and may be used to guide future whole and small group instruction. This CFA addresses 2nd grade, Cluster 5 standards.
This resource is from Tools4NCTeachers.In this lesson, students will use manipulatives to solve subtraction problems within 10 that involve removing objects from a group. Remix this lesson to share your ideas for additional word problems, extensions, or student work-samples.
This resource is part of Tools4NCTeachers.
In this lesson, students solve a word problem using a strategy of choice and share the strategy to develop the concept of representing and solving problems involving addition and subtraction within 20. This lesson format may be used with any problem type appropriate for the grade.
This resource is part of Tools4NCTeachers.
In this lesson, students work in pairs to create and discuss number lines to 100 using unifix cubes and adding machine tape.