## Reflection: Relevance Using a Factor Pair Calculator to Check Factor Pairs from 51-100 - Section 4: Partner Practice:Introducing the Factor Pair Calculator

It is now the final weeks of the school year, and I have been continually assessing since January how strong those factor pairs have become. The fluency has increased from 40% to 80% for 85% of the class according to my records. The factor pair calculator is rarely used unless it is a hard one to find all the pairs, like 96. In this little clip, I explain what I have noticed about mastery of this amazing standard! It's May and it's workin'!

Relevance: Hindsight is better than forsight...sometimes.

# Using a Factor Pair Calculator to Check Factor Pairs from 51-100

Unit 4: Concepts of Multiplication
Lesson 4 of 12

## Big Idea: Using listing strategies, divisibility rules and a factor pair calculator, students will find factor pairs 51-100 and relate ideas surrounding what they discover.

Print Lesson
Standards:
Subject(s):
Math, Number Sense and Operations, factor pairs, technology, prime, composite, Operations
65 minutes

### Mary Ellen Kanthack

##### Similar Lessons

###### Factors & Multiples
6th Grade Math » Number Sense
Big Idea: Students explore a factory of factors and multiples to build number sense and conceptual understanding.
Favorites(13)
Resources(21)
Jonesboro, GA
Environment: Urban

###### Farmer John and Farmer Fred Day 2 of 2
7th Grade Math » Equivalent Expressions
Big Idea: Students will use factoring to discover possible dimensions for a given rectangular area and also become familiar with the area model to use in distributive property.
Favorites(0)
Resources(16)
Dixon, CA
Environment: Suburban

###### Subtracting Large Numbers within a Context
4th Grade Math » Place Value
Big Idea: Students will solve subtraction problems within a context using a tape diagram.
Favorites(14)
Resources(12)
Helena, MT
Environment: Suburban