Lesson 4

Making Teams

Est. Class Sessions: 1
X

Mathematical Standards

3.OA.A
Represent and solve problems involving multiplication and division. (3.OA.A.1, 3.OA.A.3, 3.OA.A.4)
3.OA.B
Understand properties of multiplication and the relationship between multiplication and division. (3.OA.A.5)

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.
MP8.
Look for and express regularity in repeated reasoning.

Students consider the problem of dividing the class into teams of equal sizes. For each team size, they find the number of teams they can form and the number of students left over. To help solve this problem, students group counters into sets of equal sizes (with remainders). Students then look for patterns in the grouping to identify factors of a number.

Content in this Lesson

  • Dividing a set of objects into equal-size groups (with remainders) [E2].
  • Completing and writing number sentences for multiplication situations [E1, E2].
  • Representing multiplication and division situations using manipulatives and drawings [E2].
  • Showing solution strategies using number sentences and drawings [E5, MPE5].
  • Multiplying and dividing using mental math strategies [E3].

Daily Practice and Problems M–N

M. Making Groups

N. Subtraction Stories

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

assortment of counters such as connecting cubes or beans

Materials for the Teacher

Display of Class Teams Table (Student Activity Book) Page 91
Unit 3 Assessment Record
Math Facts Class Record
chart paper, optional

Assessment in this Lesson

Assessment Expectation Assessed

DPP Item M
Making Groups
Teacher Guide - digital
E2.
Represent multiplication and division problems in stories, drawings, and number sentences.
E8.
Represent solution strategies for problems involving multiplication facts for the 5s and 10s using number sentences and drawings.

Groupings and Number Sentences
Teacher Guide - digital
E1.
Complete open number sentences involving multiplication (e.g., × 4 = 4 + 4 + 4 and × 4 = 4 × 3; × 4 + 1 = 13).
E2.
Represent multiplication and division problems in stories, drawings, and number sentences.
E3.
Multiply and divide using mental math strategies (e.g., reasoning, repeated addition).

Vocabulary in this Lesson