Lesson 5

What Is in That Pocket?

Est. Class Sessions: 3
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Mathematical Standards

1.NBT.A
Extend the counting sequence. (1.NBT.A.1)
1.NBT.B
Understand place value. (1.NBT.B.2)
1.OA.A
Represent and solve problems involving addition and subtraction. (1.OA.A.1, 1.OA.A.2)
1.OA.C
Add and subtract within 20. (1.OA.C.5, 1.OA.C.6)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in
solving them.
MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP6.
Attend to precision.

Students partition the number ten into two parts. They practice filling ten frames and writing number sentences.

Content in this Lesson

  • Partitioning the number ten into two parts using ten frames and counters [E3].
  • Representing addition situations with number sentences [E6].
  • Organizing and analyzing information in a data table [E8].
  • Finding a strategy to organize and analyze partitions of numbers [MPE2].
  • Solving addition problems using the counting-on strategy [E5].
  • Solving addition situations using counters and ten frames and explaining strategies. [E7, MPE5]
  • Developing math facts strategies by partitioning numbers.
  • Discovering turn-around facts for the number 10.
  • Making connections between representations of quantities using ten frames, counters, and symbols [E2].
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

10 pennies

Materials for the Teacher

Display of Two Pockets Work Mat (Student Activity Book) Page 51
15 copies of the Ten Frames and Number Sentences Master (Teacher Guide) See Materials Preparation.
Display of Ten Frames and Number Sentences Master (Teacher Guide)
Display of Two Pockets and Ten Pennies Table Master (Teacher Guide)
Display of Math Practices (Student Activity Book) Reference
Unit 3 Assessment Record
10 pennies
chart paper display. See Materials Preparation.
tape

Materials Preparation

Prepare Display of Ten Frames and Number Sentences. Make 15 copies of the Ten Frames and Number Sentences Master. Cut apart the ten frames so that you have 30 ten frames with blanks and number sentences. Prepare two pieces of chart paper: one to post combinations and one to post repeat combinations. Label one chart "10 pennies" and the other "Repeat" accordingly. These will be used to display all the ways to arrange 10 pennies in two pockets.

Prepare Optional Targeted Practice with Two Partitions. Modify a copy of the Pockets and Ten Frames pages from the Student Activity Book and the Two Pockets and Ten Pennies Table Master to guide students to find the arrangements for any number of pennies. Remove the word "ten" from each page. Provide copies of these modified pages, a copy of the Two Pockets Work Mat and ten pennies in a center to provide targeted practice.

Prepare Optional Targeted Practice with Three Partitions. Place copies of the Three Pockets Work Mat Master and the Three Pockets and Ten Pennies Table Master, with 10 pennies in a center to provide targeted practice.

Assessment in this Lesson

Assessment Expectation Assessed Math Practices
Expectation Assessed
Nine Pennies Table
with Feedback Box
Student Activity Book
Pages 57–58
E2.
Connect representations of quantities (e.g., ten frames, tallies, counters, number lines, symbols).
E3.
Compose and decompose numbers 1–20 using counters, ten frames, number lines, diagrams, and number sentences.
E6.
Represent addition situations using drawings, diagrams, ten frames, counters, number lines, and number sentences.
E8.
Collect and organize information in a data table.
MPE2.
Find a strategy. I choose good tools and an efficient strategy for solving the problem.