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 from Tools4NCTeachers.In this lesson, students explore the concept of determining the unknown number in addition and subtraction equations.   This file contains the lesson plan, materials, extension activities, and printables.

This resource is from Tools4NCTeachers.  In this lesson, students are given a collection of coins to go shopping at the school book fair.  A poster of possible items to purchase is provided.  

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.

In this task, students are faced with a both addends unknown problem. They must find as many solutions as possible using pictures, numbers or words. A scoring rubric is included. The task may be used for instructional 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 apply properties and explore number relationships as they balance addition and subtraction equations and strengthen their understanding of the meaning of the equal sign.This file contains the lesson plan, answer key, and student materials.  Remix this lesson to include extension/math station ideas.

This resource is from Tools4NCTeachers.In this lesson, students explore the commutative and associative properties of addition as they solve word problems with multiple solutions.  This lesson will help students learn to represent and solve problems with equations that have three addends. This file contains answer keys, student recording pages, and extension problems.

This resource is from Tools4NCTeachers.In this lesson, students work with numbers less than 10 and explore the idea of one more and one less than a number.  This file includes the lesson plan, printable activities, student recording sheets, and extension ideas/math stations.