Reflection: Continuous Assessment Double-Digit Subtraction - We Can Do It - Section 3: Ongoing Assessment


I have given students a wide variety of strategies this year to solve double-digit subtraction problems. I know that I could give them just one and they could all memorize the steps and complete the problems. However, my goal is that they understand the process and complete problems in the best way for them. Students learn differently. By providing a wide variety of strategies, I am encouraging students to meet the Common Core goal of being able to explain why addition and subtraction strategies work based on place value understanding. I am also teaching students to choose the appropriate tool (MP5) for solving a problem that they are faced with. 

  Why So Many Strategies
  Continuous Assessment: Why So Many Strategies
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Double-Digit Subtraction - We Can Do It

Unit 18: Strategies That Work
Lesson 6 of 16

Objective: SWBAT use manipulatives and drawings to solve double-digit subtraction problems.

Big Idea: It takes practice to complete double-digit subtraction problems so today's lesson allows for that practice in several subtraction centers.

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2 teachers like this lesson
Math, Number Sense and Operations, Operations , subtraction, regrouping, choosing strategies, review, estimation
  70 minutes
screen shot 2014 07 30 at 3 53 16 pm
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