Using tiles to represent variables and constants, learn how to represent and solve algebra problem. Solve equations, substitute in variable expressions, and expand and factor. Flip tiles, remove zero pairs, copy and arrange, and make your way toward a better understanding of algebra.

Students use manipulatives to represent visually the steps they take to obtain a solution to an algebraic equation. They develop an understanding of the connections between the solution involving manipulatives and the symbolic solution.

Students have the opportunity to decipher hidden messages. Students practice decoding cryptograms.This interactive resource is a component of the Knowing Poe web resource. The lesson is designed to accompany a study of Edgar Allen Poe, who enjoyed using secret writing.

This resource is part of Tools4NCTeachers.

In this lesson, students explore approaches for adding three two-digit numbers.

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.  In this lesson, students determine whether or not they have enough money to purchase popcorn in addition to movie tickets. They then determine whether or not there will be change and if so, how much change they would receive. Printable student sheets are provided in this lesson.

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 lesson, students solve word problems involving addition. This lesson also contains a set of directions/materials for math stations. Stations continue to develop counting and problem solving skills.

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 7 standards.  Answer key is provided.

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 8 standards.  Answer key is provided.

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.

This resource is from Tools4NCTeachers.  In this lesson, students will create a survey question, collect data, create a bar graph, write and answer questions about the collected data.  This lesson may take two days to complete.  Printable, samples of student work, sample anchor charts, and extension ideas are included within this lesson.

This resource is part of Tools4NCTeachers.

In this lesson, students will use manipulatives to solve addition problems within 10 that involve putting together two groups of objects.

This resource is part of Tools4NCTeachers.

In this task, students interpret and answer questions about a graph. 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.

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.

This resource is part of Tools4NCTeachers.

Students are asked to solve an unknown addend, 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 lesson is part of Tools4NCTeachers.In this lesson, students practice solving unknown-addend problems by using addition strategies or changing to subtraction problems. Task cards and extension actvities are included.