Reflection: Modeling Use Number Line for Subtraction - Section 3: Independent Practice


It is very important to model to your students the exact moment of when to start counting as they move their finger across the number line to subtract. Watch the video, Trouble with number line video, of one of my students presenting this common mistake and my reflection, number line reflect part 1 and number line reflect part 2, for the task.

  Modeling: Right on the dot!
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Use Number Line for Subtraction

Unit 11: Subtraction Strategies
Lesson 3 of 7

Objective: SWBAT solve subtraction equations within 20 using a number line.

Big Idea: My students have learned to identify missing numbers on a number line. Now I want them to see a number line as a tool to solve subtraction problems.

  Print Lesson
Math, Number Sense and Operations, subtraction, First Grade, number line, take away, Operations
  35 minutes
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