1. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Learning Objective Name _________________________ Today, we will identify 1 which set has less. 1 look for CFU What are we going to do today? What does identify mean? Identify means to _____________________. Activate (or provide) Prior Knowledge CFU Students, you already know how to count to tell how many objects you see. We have 4 hearts and 2 stars. Today, we will use counting to identify which set has less. How many hearts do we have? How many stars do we have? 4 2

2. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Set A Set B 2 apples 4 oranges A.B. Concept Development A set is a group of things that are together. A set has less if it has the fewest things. CFU Count each set of objects below. Which set below has less? How do you know? 36 What is a set? A set is ____________________. Less

3. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Skill Development/Guided Practice Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. CFU (#1) How did I/you count each set? (#1a) How did I/you write the number for each set? (#2) How did I know which set had less? A set has less if it has the fewest things. 3 3 3 4 4 2 2 1.2. 3.4. 2 Triangles Circles

4. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Skill Development/Guided Practice (continued) 5.5. 6.6. 7.7. 8.8. 2 2 33 4 4 4 Apples Oranges Hearts Triangles 5 Books Bananas Crayons Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. A set has less if it has the fewest things. CFU (#1) How did I/you count each set? (#1a) How did I/you write the number for each set? (#2) How did I know which set had less?

5. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. 1. Identifying which set has less will help you make good choices. CFU Does anyone else have another reason why it is relevant to identify which set of objects has less? (pair-share) Why is it relevant to identify which set of objects has less? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why? Relevance A set has less if it has the fewest things. Which set of chores would you like to have? Set ASet B Set A has less than Set B 3 chores is less than 5

6. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Skill Closure Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. 1. 2. 2 2 3 4 Apples Oranges Stars Squares What did you learn today about identifying which set of objects has less? (pair-share) A set has less if it has the fewest things. Constructed Response Closure James thinks that the group of carrots below has less than the group of bananas. Is he correct? How do you know? Summary Closure

7. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Independent Practice Name _____________________ 1.2. 3.4. 2 2 2 3 4 Corn Carrots HeartsSquares 5 5 Juice Boxes Milk Cartons Books Flags 6 Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. A set has less if it has the fewest things.

8. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Periodic Review 1 Name ___________________ 1.2. 3.4. Strawberries 4 4 4 Stars Circles Squares 6 6 6 8 5 Milk CartonsJuice Boxes Bananas Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. A set has less if it has the fewest things.

9. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Periodic Review 2 Name _____________________ 1.2. 3.4. 5 Apples Oranges Pencils Scissors Hearts Stars Pennies Triangle 6 8 7 8 6 6 7 Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. A set has less if it has the fewest things.

10. DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com Kindergarten Mathematics Number Sense 1.1 Compare two or more sets of objects (up to 10 objects in each group) and identify which set is equal to, more than, or less than the other. Lesson to be used by EDI-trained teachers only. Periodic Review 3 Name _____________________ 4. 1.2. 3. Strawberries 5 6 8 10 8 6 9 7 Corn Pencils Hearts Pennies Flags Carrots Step #1: Count each set. a. Write the number. Step #2: Identify the set that has less. (circle) Step #3: Interpret the answer. “_______ is less than _____.” Identify which set has less. A set has less if it has the fewest things. Apples