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Subtracting Decimals

# Subtracting Decimals

Unit 3: Targeted Skills Interventions

Lesson 8 of 20

Lesson 8 of 20

## Objective: The students will be able to subtract numbers with decimals.

Subject(s):

Math, Number Sense and Operations, fluency, review, Operations, Intervention

*180 minutes*

2

#### Activities

*150 min*

- Introduce Skill
- While preparing myself for teaching/introducing today’s skill I view a short tutorial from Khan Academy.
- I bring the students to area of the room where I can use the whiteboard and they can gather with their whiteboards.
- I introduce their ‘I Can’ statement for today.
- I can subtract numbers that include decimals.

- As a group we go over the skill and practice it on our whiteboards.

- Partner Practice
- Students work with a partner to practice their skill.
- Students play Advanced Get to the Point Subtraction.

- Independent Practice
- Students work on the worksheet on their own.
- Subtracting Decimals

- Check-In
- The students and I review the worksheet from the previous activity.
- I go over the first few problems with the students.
- Then one at a time I have students take turns explaining the remainder of the problems.

- The students and I review the worksheet from the previous activity.

- Interactive Practice
- The students work in groups to practice their skill on an online interactive.

*expand content*

3

#### Assessment

*30 min*

Generally the purpose of classroom computation isn’t quantity, it is quality with a focus on explaining the strategies used and how/why it is true. However, the purpose of targeted skills practice includes fluency, as well as additional review to build comprehension. I am looking for the student to demonstrate their fluency on this skill by completing the assessment with very few errors and within a reasonable amount of time. The assessment is meant to be completed in no more than 30 minutes.

#### Resources

*expand content*

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- LESSON 1: Multi-Digit Subtraction
- LESSON 2: Multi-Digit Multiplication
- LESSON 3: Multiplying Decimals
- LESSON 4: Perimeter
- LESSON 5: Line Symmetry
- LESSON 6: Place Value with Decimals
- LESSON 7: Adding Decimals
- LESSON 8: Subtracting Decimals
- LESSON 9: Input Output Box
- LESSON 10: Operations with Time
- LESSON 11: Identifying Polygons
- LESSON 12: Rounding Decimals
- LESSON 13: Adding Several Integers
- LESSON 14: Types of Transformations
- LESSON 15: Angle Types
- LESSON 16: Number Line with Fractions or Decimals
- LESSON 17: Finding Mean
- LESSON 18: Factors of a Whole Number
- LESSON 19: Using Area
- LESSON 20: Coordinates of a Figure

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