Reflection: Modeling Multiplication: x0, x1, x2 - Section 4: Guided Practice

 

By teaching the algorithm over and over using the same wording, students caught on quickly. This is important as an algorithm is a set of procedures used to complete a task.

If students learn the exact set of procedures, it helps them avoid common mistakes. For example, with the problem 2 x 945, some students may multiply 2 x 9 first instead 2 x 5 first.

Others add the carried digit prior to multiplying. For example, in the above problem, students multiply 2 x 5 and then carry the one above the 4. Instead of multiplying the 2 x 4 and then adding the 1, some students will add the 1 to the 4 and then multiply 5 x 2.

This is why repeatedly reviewing the algorithm steps is so important. 

  Modeling
  Modeling: Modeling
Loading resource...
 

Multiplication: x0, x1, x2

Unit 13: Multiplication Kick Off
Lesson 2 of 7

Objective: SWBAT multiply a multi-digit number by 0, 1, and 2.

Big Idea: After modeling multiplication facts for 0, 1, and 2 using unifix cubes and a number line, students will multiply multi-digit numbers by 0, 1, and 2.

  Print Lesson
2 teachers like this lesson
Standards:
Subject(s):
Math, modeling, Numbers and Operations, multiplication facts, number line model, Operations
  100 minutes
unifix cubes
 
1
2
3
4
5
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.
  Favorites(22)
  Resources(15)
Helena, MT
Environment: Suburban
Melissa Romano
 
Multiplication Array: Part I Measuring It Out
5th Grade Math » Multiplication Madness
Big Idea: Measurement is the lowest scoring concept on national and state tests - fit it in everywhere!
  Favorites(14)
  Resources(15)
Scottsdale, AZ
Environment: Urban
Cathy Skinner
 
Factor Pairs, Arrays, Patterns and Fun! Building factor pairs to 50
4th Grade Math » Concepts of Multiplication
Big Idea: A hands-on lesson where students learn how to create factor pairs, arrays, and find prime, square and composite numbers by discovery.
  Favorites(16)
  Resources(18)
Genoa City, WI
Environment: Rural
Mary Ellen Kanthack
 
Something went wrong. See details for more info
Nothing to upload
details
close