Lesson 5

Addition Strategies Practice

Est. Class Sessions: 2–3
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

MP1.
Make sense of problems and persevere in
solving them.
MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP8.
Look for and express regularity in repeated reasoning.

Students revisit the Addition Strategies chart made in Lessons 1–3 and discuss which strategies seem better suited to solve each fact. They then summarize those strategies into an Addition Strategies Menu for Small Numbers. Students revisit games and activities from previous lessons to choose practice that will help them develop strategies for the addition facts with sums to ten.

Content in this Lesson

  • Representing addition and subtraction using stories, drawings, counters, number sentences, number lines, or ten frames [E2].
  • Using strategies that apply the properties of addition (e.g., turn-around, zero) to solve addition and subtraction problems [E4].
  • Adding and subtracting within 10 using invented, counting (e.g., counting on, counting up, counting back), and reasoning (e.g., making ten, using ten, using doubles) strategies [E7].
  • Using tools to represent reasoning or solution strategy [MPE2].

Daily Practice and Problems O–R

O. Ten

P. Partition Ten

Q. Stories

R. Addition Facts

X

Materials for Students

Daily Practice and Problems Lesson Assessment

Student Books

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

at least 4 Addition Cards from the Addition Cards for Small Sums 2 or 3 (Teacher Guide). See Materials Preparation.
tape
10 connecting cubes
desk number line (0–40)
clear spinner or paper clip and pencil

Materials for the Teacher

Prepared set of Addition Cards for Small Sums 1 Master (Teacher Guide). See Materials Preparation.
Display of Ten Frames Master (Teacher Guide)
Display of Addition Strategies Menu for Small Numbers (Student Activity Book) Page 141
Unit 6 Assessment Record
Math Facts Class Record
Addition Strategies chart from Lessons 1 and 3
chart paper
class number line (0–130)
connecting cubes
colored copy paper
tape
scissors

Materials Preparation

Prepare Addition Cards. Copy on colored paper and cut apart one set of cards from the Addition Cards for Small Sums 1 Master on colored paper. Copy on colored paper and cut apart 2–3 copies of the Addition Cards for Small Sums 2 and 3 Masters. Each student pair will need at least four addition cards. If your class is small, distribute more cards to each pair. Each addition fact should be analyzed by more than one pair of students.

Place More or No More Game in a Center. The game More or No More was introduced and prepared in Lesson 2. Place several copies of the spinner with a clear spinner or a paper clip and pencil along with several copies of the recording sheet in a learning center.

Place Ten Frame Flash: Ten Facts in a Center. If you have not done so already, prepare the cards on the 0–10 Small Ten Frame Cards Master. Copy them on heavy card stock, cut them apart, and place them in an envelope or clip them together. Ten Frame Flash: Ten Facts was introduced in Lesson 4.

Place Make Ten Game in a Center. The Make Ten game was introduced in Lesson 4. If you have not done so already, prepare the cards on the Number Cards 0–10 Master. Copy them on heavy card stock, cut them apart, and place them in a envelope or clip them together. Game directions are in Lesson 4.

Place Paper and Drawing Materials in a Center. During the lesson, students will have the opportunity to visit a center to write a number story. Place drawing paper and materials in a center and locate a place to display students' stories.

Assessment in this Lesson

Assessment Expectation Assessed
Addition Practice Menu
Self-Assessment
Student Activity Book
Page 143
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, doubles) strategies.
DPP Item Q
Stories
Teacher Guide - digital
E6.
Solve word problems (e.g., join, separate/take away, part-whole, compare) involving two whole numbers whose answer is less than or equal to 10.
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 R
Addition Facts
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.