Lesson Plan

# Math Strategies

Fluently add and subtract within 20 using mental strategies
Objectives

Students will be able to...

• Identify mental strategies for addition
•  Solve equations using mental strategies
• Determine what strategy would work best for a given situation.
Subjects
Math

#### 1 Hook

Project the Prior Knowledge Connection

Say to the students, “Today we are going to be using strategies to help us solve addition and subtraction equations. A strategy is like a plan. Strategies help us think about and solve math problems.

Student Instructions

What strategy would you use to solve the following equations?

Sort the equations into categories.

#### 2 Direct Instruction

Project the Task Introduction Video to show the solution to the Prior Knowledge Connections and then introduce a similar scenario requiring students to apply known strategies to solve equations mentally

• How is the new problem in the video similar to the one you just worked on?
• How is the new problem in the video different from the one you just worked on?
Student Instructions

Watch the video and participate in the teacher led discussion.

#### 3 Guided Practice

Project Conceptual Understanding Task in front of the class and allow students to work.

Projected time 10-15 minutes

Student Instructions

#### 4 Independent Practice

As students work, use the Task Implementation Guide to:

• Monitor student progress
• Ask questions to move students thinking forward
• Make decisions about the discussion of the work

After students have finished their work, use the topics below to facilitate a discussion.
Play the video that explains the Key Concept behind the lesson and demonstrates how to solve the task.

• Different strategies and why they are efficient for given problems.
• Importance of knowing some facts from memory to help you solve new problems.

#### 5 Wrap-Up

Project “Closing” and read the statements to the class about the Key Concept of this lesson

Handout the “Exit ticket” and allow 5 minutes to complete.

Instructional guidance: Review doubles and near doubles facts to help students understand the difference between each strategy as well as help commit facts to memory.

Student Instructions

Complete the Exit Ticket