Unit 8, Section A

Odd and Even

Grade 2

Practice

1. Problem 1

   K.CC.5

   Pre-unit

   Student Task Statement

   How many dots do you see?

   1.  

       

      

   2.  

       

      

   3.  

       

      

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2. Problem 2

   1.OA.7

   Pre-unit

   Student Task Statement

   Select 3 correct equations.

3. Problem 3

   Student Task Statement

   Here are some pattern blocks.

   How many corners do the blocks have in all? Show your thinking using drawings, numbers, or words.

   

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4. Problem 4

   ForLesson 1: Can You Share?

   Student Task Statement

   1. Noah and Lin have 13 crayons. Can they share all of them equally with no leftovers? Show your thinking using drawings, numbers, or words.

   2. Noah and Lin have 16 colored pencils. Can they share all of them equally with no leftovers? Show your thinking using drawings, numbers, or words.

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5. Problem 5

   ForLesson 2: Partners Make Pairs

   Student Task Statement

   Mai plans a dance. She wants everyone to dance in pairs. For each number of students, decide if everyone can dance with a partner. Show your thinking using drawings, numbers, or words.

   1. 14
   2. 17
   3. 18

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6. Problem 6

   ForLesson 3: Is It Odd or Even?

   Student Task Statement

   For each image, decide if the number of dots is even or odd. Show your thinking using drawings, numbers, or words.

   1.  

      

   2.  

      

   3.  

      

7. Problem 7

   ForLesson 4: Decompose Even and Odd Numbers

   Student Task Statement

   Decide if each number is even or odd. If it is even, write the number as a sum of 2 equal addends.

   1. 12
   2. 15
   3. 18

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8. Problem 8

   ForLesson 4: Decompose Even and Odd Numbers

   Student Task Statement

   Does each expression represent an even number or an odd number? Show your thinking using drawings, numbers, or words.

9. Problem 9

   Exploration

   Student Task Statement

   This design is called the “flower of life.”

   It is made of shapes that look like this.

   

   

   1. Is the number of these shapes in the design even or odd? Show your thinking using drawings, numbers, or words.
   2. How many of the shapes are in the design? Show your thinking using drawings, numbers, or words.

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10. Problem 10

    Exploration

    Student Task Statement

    Look around the classroom for groups of objects. Without counting, how do you know that a group has an even number of objects? Explain your reasoning.

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