Reflection: Developing a Conceptual Understanding Subtracting Whole Numbers - Section 5: Closure

 

Having the students use place value charts and blocks to subtract really was a good strategy to give the students a visual understanding of the skill.  Some of the students had a hard time regrouping.  By practicing over and over, the students finally understood how modeling on the place value chart coincides with using subtracting with paper and pencil.  Subtraction is a skill that the students begin in lower grades.  A lot of the students know how to do the algorithm, but have no concept of actually what it means to regroup.

  Subtracting Whole Numbers
  Developing a Conceptual Understanding: Subtracting Whole Numbers
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Subtracting Whole Numbers

Unit 11: Adding and Subtracting Whole Numbers
Lesson 4 of 11

Objective: SWBAT subtract numbers to thousands with and without regrouping.

Big Idea: Using place value helps make subtracting easier.

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7 teachers like this lesson
Subject(s):
Math, Number Sense and Operations, subtraction, Operations
  55 minutes
student working with place value
 
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