Lesson 6

Moves on the 200 Chart

Est. Class Sessions: 2–3
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Mathematical Standards

2.MD.B
Relate addition and subtraction to length. (2.MD.B.6)
2.OA.A
Represent and solve problems involving addition and subtraction. (2.OA.A.1)
2.OA.B
Add and subtract within 20. (2.OA.B.2)
2.NBT.A
Understand place value. (2.NBT.A.1)
2.NBT.B
Use place value understanding and properties of operations to add and subtract. (2.NBT.B.7, 2.NBT.B.8)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in
solving them.
MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.
MP8.
Look for and express regularity in repeated reasoning.

Students explore number relationships on the 200 Chart by finding target numbers and solving problems using more than and less than. They learn how to use the chart to solve addition and subtraction problems. Students then play a game involving adding and subtracting on the 200 Chart.

Content in this Lesson

  • Identifying, describing, and using patterns on the 200 Chart [E1].
  • Connecting representations of quantities on the 200 Chart and in number sentences [E2].
  • Representing addition and subtraction using multiple representations on the 200 Chart [E3].
  • Solving subtraction problems using counting strategies [E5].
  • Using precise language.
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Book

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

2 game markers of different colors

Supplies for Student Pairs

clear plastic spinner or a pencil and paper clip

Materials for the Teacher

Display of 200 Chart (Student Activity Book) Page 139 or Reference
Display of Moving on the 200 Chart pages (Student Activity Book) Pages 137–142
Unit 3 Assessment Record
clear plastic spinner or a pencil and paper clip

Materials Preparation

Spinners. If you do not have clear plastic spinners to place over the spinner on the Moving on the 200 Chart page, students can use paper clips and pencils. Straighten out one end of the paper clip, and place a pencil through the curved end. Then put the point of the pencil on the center of the spinner and spin the paper clip around the pencil, using the straightened end as the pointer. See Figure 1.

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Figure 1: Using a pencil with a paper clip as a spinner

Prepare Optional Targeted Practice. Make copies of the Moving on the 200 Chart pages from the Student Activity Book to place in a learning center. Students will also need a spinner or a paper clip and pencil and game markers.

Assessment in this Lesson

Assessment Expectation Assessed
Follow the Moves on the 200 Chart
Student Activity Book
Page 143
E1.
Identify, describe, and use patterns on a 200 Chart and number line.
E2.
Connect representations of quantities using number lines, 200 Charts, and number sentences.
E3.
Represent addition and subtraction using multiple representations (e.g., stories, drawings, diagrams, counters, number sentences, number lines, 200 Chart).
E5.
Solve subtraction problems using counting strategies.

Vocabulary in this Lesson