Lesson 4

Spin for 50

Est. Class Sessions: 1–2
X

Mathematical Standards

1.NBT.A
Extend the counting sequence. (1.NBT.A.1)
1.NBT.B
Understand place value. (1.NBT.B.2)
1.NBT.C
Use place value understanding and properties of operations to add and subtract. (1.NBT.C.4, 1.NBT.C.5)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP5.
Use appropriate tools strategically.
MP7.
Look for and make use of structure.

Students practice counting objects using tens and ones. They play Spin for 50 in pairs. Players take turns spinning a spinner to determine the number of Xs to add to a set of five ten frames. The goal is to be the first to fill the ten frames with 50 Xs.

Content in this Lesson

  • Grouping and counting objects by tens and ones.
  • Representing and identifying numbers to 50 using ten frames [E1].
  • Representing the partitions of two-digit quantities as tens and ones [E2].
  • Using grouping language of tens and ones along with the conventional number names (e.g., 42 is 4 tens and 2 ones).

Daily Practice and Problems I–J

I. Number of Letters

J. Math Facts

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Book

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Student Pairs

clear plastic spinner or pencil with paper clip

Materials for the Teacher

Display of Spin for 50 Spinner and Recording Sheets (Student Activity Book) Pages 291–294
Display of 100 Chart (Student Activity Book) Reference
Unit 10 Assessment Record
Math Facts Class Record
clear plastic spinner or pencil with paper clip
class number line (0–130)

Materials Preparation

Prepare the Spinner for the Spin for 50 Game. If you do not have clear plastic spinners to place over the game 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.

image
Figure 1: Using a paper clip and pencil as a spinner

Place Spin for 50 in a Learning Center. For targeted practice, make additional copies of the Spin for 50 game and recording sheet pages in the Student Activity Book and place them along with spinners in a learning center.

Assessment in this Lesson

Assessment Expectation Assessed
Spin for 50
Observe game
Student Activity Book
Pages 291–294
E1. 
Represent and identify numbers to 100 using counters, number lines, ten frames, 100 Chart, drawings, and symbols.
E2. 
Represent the partitions of two-digit quantities as tens and leftover ones.
DPP Item J
Math Facts
Teacher Guide - digital
E9. 
Demonstrate fluency with the addition facts with sums to ten in Group C.