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• \$5.00

In this unit, students develop an understanding of equal groups, building on their experiences with skip-counting and with finding the sums of equal addends. The work here serves as the foundation for multiplication and division in grade 3 and beyond. Students begin by analyzing even and odd numbers of objects. They learn that any even number can be split into 2 equal groups or into groups of 2, with no objects left over. Students use visual patterns to identify whether numbers of objects are even or odd. Next, students learn about rectangular arrays. They describe arrays using mathematical terms (rows and columns). Students see the total number of objects as a sum of the objects in each row and as a sum of the objects in each column, which they express by writing equations with equal addends. They also recognize that there are many ways of seeing the equal groups in an array. Later, students transition from working with arrays containing discrete objects to equal-size squares within a rectangle. They build rectangular arrays using inch tiles and partition rectangles into rows and columns of equal-size squares. The work here sets the stage for the concept of area in grade 3.

Includes: Student and Teacher Editions
Size: 263

• \$3.00

Give students the practice they need to identify even and odd numbers! This resource includes 18 worksheets that progressively include higher numbers to really help students solidify their understanding.

Includes:

• – 4 worksheets (#’s to 20) w/ pictures: Students are to count and write how many, then create pairs (to determine if the number is even or odd) and then will circle even or odd.
• – 3 worksheets (#’s to 20) for students to identify odd numbers (given a sets of  6 numbers, they will circle every odd number)
• – 3 worksheets (#’s to 20) for students to identify even numbers (given a sets of  6 numbers, they will circle every even number)
• – 2 worksheets (#’s to 20) for students to identify both even and odd numbers (given a sets of  4 numbers, they will circle every even or odd number based on instructions given)
• – 4 worksheets (#’s to 50) for students to identify both even and odd numbers (given a sets of  4 numbers, they will circle every even or odd number based on instructions given)
• – 2 worksheets (#’s to 120) for students to identify both even and odd numbers (given a sets of  3 numbers, they will circle every even or odd number based on instructions given)