Adding Like Units in 2nd Grade
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Subject Area: Mathematics (B.E.S.T.) | Grade Level: 2
Lesson Length: 1 hour
Keywords/Tags: Make a Ten to Add
Lesson Description: Students will learn how to apply the addition strategy "make a ten" to add within 20. This will strengthen their number sense, fluency, and help them relate addition to subtraction as they are inverse operations. Students will learn the strategy through the lesson video, practice this skill with an independent puzzle activity, and explain their mathematical thinking on a Padlet. Students will then take a short quiz to assess learning.

  • Other 2.OA.A.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
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Video : Make a Ten to Add Grade 2
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Description: This video will teach students how to make a ten to add.
Forum : Make a ten to Add Padlet
Instructions: Explain how you can make a ten to add 9 and 7.
Make a ten to add 9 and 7.

Description: This discussion will have you explain how you can make a ten to add 9 and 7. Use complete sentences and mathematical words you have learned to respond.
Assignment : Make a Ten to Add Puzzle Activity

Instructions: Follow the link.  Print out this activity to have some hands-on practice making a ten to add.  Bring in your completed work to school. 

 

https://1drv.ms/b/s!AqxefxaVVbN6gj8lEeUef_f51XlI?e=BodGAK

Quiz : Make a Ten to Add
Instructions: Please complete this quiz by choosing the correct answer for each question. You can take this quiz as many times needed. Remember to solve by using the strategy "Make a ten". Show your work on scratch paper. 1. 8 + 3 = _______ 2. 6 + 5= _____ 3. 9 + 2 =_____ 4. 4 + 8 =_____
Question #1
8+3=_____
Question #2
6+5=_____
Question #3
4+9=_____
Question #4
9+2=_____
Question #5
Explain in writing how you used the strategy make a ten to solve 9+2=_____.
Description: You will apply your knowledge of the strategy "make a ten to add". Use scratch paper to show all your work. Bring in your scratch paper with your answers circled or highlighted to turn in.