Reflection: Modeling Partial Products Part 1 - Section 3: Student Practice


During student practice time, I conferenced with this student (Multiplying by 9000) about 9000 x 5. At first, I struggled with explaining how to multiply 9000 x 5 without telling the student, "9 x 5 is 45 and then add on three zeros." 

That was when I thought of a more effective way of modeling this on the board for all students. 

1. At first I began Modeling: Adding on Zeros. I showed students that 45 + 000 = 45. 

2. Then, I went on to Modeling 9000 x 5 on the Board. I showed students how to change 9000 x 5 into 9 x 1000 x 4. We multiplied the 9 x 5 to get 45 and then multiplied the 45 by 1000 to get 45,000. 

After this modeling, I conferenced with the student again to Check for Understanding.


  Modeling: More Effective Way of Modeling
Loading resource...

Partial Products Part 1

Unit 11: Multiplication: Single-Digit x Multi-Digit
Lesson 3 of 8

Objective: SWBAT solve 1-digit x 4-digit multiplication problems using the partial product method and the standard algorithm.

Big Idea: Students should be able to solve and illustrate multiplication problems using multiple strategies.

  Print Lesson
3 teachers like this lesson
Math, Number Sense and Operations, multiplication, partial products
  100 minutes
finding partial products
Similar Lessons
Additive Compare Word Problems and Place Value Review
4th Grade Math » Place value
Big Idea: In this fun engaging lesson, students review place value concepts by working with partners an groups in fun creative card games.
Helena, MT
Environment: Suburban
Melissa Romano
Making a Class Array (Meanings of Multiplication)
4th Grade Math » Multiplication and Division Meanings
Big Idea: By recognizing that multipliation is repeated addition the students can use addition skills to help solve multiplication problems.
Memphis, TN
Environment: Urban
Rose Monroe
Multiple Ways to Multiply With Multiple Digits
5th Grade Math » Multiplication Madness
Big Idea: There are multiple ways to check your answers when using the traditional multiplication algorithm.
Scottsdale, AZ
Environment: Urban
Cathy Skinner
Something went wrong. See details for more info
Nothing to upload