Lesson 1

Inventing Ways to Divide

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)
4.OA.A
Use the four operations with whole numbers to solve problems. (4.OA.A.3)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP6.
Attend to precision.

Students invent strategies to solve open-response problems involving whole-number division. They develop their own methods using manipulatives and paper and pencil to divide three-digit numbers by a single-digit number.

Content in this Lesson

  • Developing models and methods to solve division problems [E1].
  • Interpreting remainders [E4].
  • Using flexible strategies to divide [E1].

Daily Practice and Problems A–B

A. Division Facts

B. Guess My Number

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
     

Teacher Resources

 Teacher Guide - digital  

Supplies for Students

connecting cubes (40 per student)

Supplies for Student Groups

chart paper or other materials to share group work

Materials for the Teacher

chart paper
markers
Unit 12 Assessment Record
Math Facts Class Record

Assessment in this Lesson

Assessment Expectation Assessed Math Practices
Expectation Assessed
Inventing Ways to Divide
Check-In: Question 4
Student Guide
Page 529
E1.
Demonstrate understanding of division of multidigit numbers by 1-digit numbers using models.
E4.
Interpret remainders from division of multidigit numbers.
MPE2.
Find a strategy.
I choose good tools and an efficient strategy for solving the problem.
MPE3.
Check for reasonableness.
I look back at my solution to see if my answer makes sense. If it does not, I try again.
MPE5.
Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.
DPP Item A
Division Facts
Teacher Guide - digital
E8.
Demonstrate fluency with the division facts in all groups.

Vocabulary in this Lesson