Lesson 2

Practice Addition Facts to Ten

Est. Class Sessions: 1–2
X

Mathematical Standards

1.OA.A
Represent and solve problems involving addition and subtraction. (1.OA.A.1)
1.OA.B
Understand and apply properties of operations and the relationship between addition and subtraction. (1.OA.B.3)
1.OA.C
Add and subtract within 20. (1.OA.C.6)

Standards for Mathematical Practice

MP2.
Reason quantitatively.

Students learn how to use Addition Flash Cards to practice the addition facts to ten. In this unit, students focus on developing mental math strategies for the addition facts in Groups A and B.

Content in this Lesson

  • Using strategies to solve addition problems in Groups A and B [E7, E8].
  • Using turn-around facts to solve addition problems [E4].
  • Representing addition situations using ten frames [E2].
  • Representing addition using number sentences [E2].
  • Applying the property of zero to solve addition problems with sums to ten [E4].

Daily Practice and Problems E–F

E. Shopping 1

F. Cube Totals

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

envelope and paper clip for storing flash cards
10 connecting cubes
desk number line (0–40)
clear spinner or paper clip and pencil

Materials for the Teacher

Display of Sorting Flash Cards Board (Student Activity Book) Page 121
Demonstration set of Addition Flash Cards: Groups A and B (Teacher Guide)
Unit 6 Assessment Record
Math Facts Class Record

Materials Preparation

Prepare Addition Flash Cards. Copy the Addition Flash Cards: Groups A and B on heavier paper or card stock. Cut the flash cards apart and store them in an envelope for each student. You may want to provide each student with two sets, one to use at school and one to take home.

Prepare Number Cards. Copy the Number Cards 0–8 Homework Master on heavier paper or card stock. Cut the cards apart and store them in an envelope for each student pair. Students will use these to play a game in class.

Gather Materials for Spinners. Students can either use overlay clear spinners or use a pencil and paper clip.

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

Prepare Optional Targeted Practice. There are several activities described on the Practicing Addition Facts Homework Master that can be placed in a center to provide targeted practice with strategies for the addition facts in Groups A and B. Prepare additional sets of Addition Flash Cards: Groups A and B and copies of the Sorting Flash Cards Board page from the Student Activity Book and the pages needed for the More or No More Game also in the Student Activity Book and Teacher Guide.

Assessment in this Lesson

Assessment Expectation Assessed
Addition Flash Cards: Groups A and B
Self-Check
Teacher Guide - digital
Sorting Flash Cards Board
Student Activity Book
E8.
Use mental math strategies to add (e.g., direct modeling, counting strategies, reasoning from known facts) for the facts in Groups A and B.
More or No More Game
Student Activity Book
Page 123–126
E2.
Represent addition and subtraction using stories, drawings, diagrams, counters, number sentences, number lines, or ten frames.
E4.
Use strategies that apply the properties of addition (e.g., turn-around, zero) to solve addition and subtraction problems.
E7.
Add and subtract within 10 using invented, counting (e.g., counting on, counting up, counting back), and reasoning (e.g., making ten, using ten, using doubles) strategies.
E8.
Use mental math strategies to add (e.g., direct modeling, counting strategies, reasoning from known facts) for the facts in Groups A and B.
DPP Item F
Cube Totals
Teacher Guide - digital
E8.
Use mental math strategies to add (e.g., direct modeling, counting strategies, reasoning from known facts) for the facts in Groups A and B.

Vocabulary in this Lesson