Lesson 1

Facts I Know: Multiplication and Division

Est. Class Sessions: 1
X

Mathematical Standards

4.NBT.B
Use place value understanding and properties of operations to perform multi-digit arithmetic. (4.NBT.B.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.
MP7.
Look for and make sense of structure.

This lesson reviews strategies for learning multiplication facts in preparation for the Multiplication Facts Inventory Test in Lesson 8. Part 2 is a brief exploration and review of fact families, then students begin their systematic study and assessment of the division facts using Triangle Flash Cards and Division Facts I Know charts. Students also explore division with zero using what they know about fact families

Content in this Lesson

  • Practicing the multiplication facts [E12].
  • Self-assessing fluency with the division facts for the 5s and 10s [E10].
  • Using the terms dividend, divisor, and quotient.
  • Writing the number sentences for fact families [E11].
  • Using known multiplication facts to learn related division facts [E11].
  • Solving problems involving division with zero [E8].
  • Justifying solutions to problems involving division with zero [E8].
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

Multiplication Facts I Know chart (from Unit 3)
scissors
envelope for storing flash cards
calculator

Materials for the Teacher

Display of Triangle Flash Cards: 5s Master (Teacher Guide)
Display of Division Facts I Know chart (Student Activity Book) Page 185
Unit 6 Assessment Record
Math Facts Class Record

Materials Preparation

Triangle Flash Cards. This lesson introduces students to the use of Triangle Flash Cards to practice division facts. Copy the Triangle Flash Cards: 5s and 10s on heavier or different colored paper. Have students cut out the cards and place them in envelopes.

Assessment in this Lesson

Assessment Expectation Assessed

Facts I Know: Multiplication and Division
Self-Check: Questions 1–4
Student Guide
Page 214
E12.
Demonstrate fluency with all the multiplication facts.

Facts I Know: Multiplication and Division
Self-Check: Question 5
Student Guide
Pages 215–216
E10.
Demonstrate fluency with the division facts for the 5s and 10s

Facts I Know: Multiplication and Division
Check-In: Question 12
Student Guide
Page 218
E8.
Solve division problems involving zero and justify solutions.