Unit 8: Equal Groups
Students work with equal groups of objects to gain foundations for multiplication.
Worksheets
Every sheet has an answer key. Free to print, no login.
What this unit covers
A Odd and Even · 6 lessons
Goals
- Determine whether a group of objects (up to 20) has an odd or even number of members.
- Write an equation to express an even number as a sum of two equal addends.
Lessons
- Can You Share?
- Partners Make Pairs
- Is It Odd or Even?
- Decompose Even and Odd Numbers
- Patterns with Even and Odd Numbers (Optional)
- Center Day 1 (Optional)
B Rectangular Arrays · 8 lessons
Goals
- Partition rectangles into rows and columns of equal-size squares, and count to find the total number of squares.
- Represent the total number of objects in an array as a sum of equal addends.
- Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns.
Lessons
- What Is an Array?
- Count Columns and Objects in Columns
- A Sum of Equal Addends
- Write Expressions and Equations to Represent Arrays
- Arrays and Rectangles
- Partition Rectangles into Squares
- Center Day 2 (Optional)
- A Band Concert (Optional)
Helpful to know first
The curriculum says this unit builds on these.
Grade 2 Math · Unit 6
Geometry, Time, and Money