Open Up Resources K–5 Math
Grade 4
Kindergarten
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
Units
1
2
3
4
5
6
7
8
9
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Glossary
Math Tools
Unit 1
Factors and Multiples
Section A:
Understand Factors and Multiples
Practice Problems
Lesson 1
:
Multiples of a Number
Lesson 2
:
Factor Pairs
Lesson 3
:
Prime and Composite Numbers
Lesson 4
:
Multiplication Practice
Section B:
Find Factor Pairs and Multiples
Practice Problems
Lesson 5
:
More Multiples
Lesson 6
:
The Locker Problem
Lesson 7
:
Find Factors and Multiples
Lesson 8
:
Mondrian’s Art
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Unit 2