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# Subtraction and regrouping with Bria Johnson

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Students will use Minecraft to explore and build math models of base 10 subtraction problems. It’s a whole new way of learning! Learning Objectives Common Core Standards: CCSS.MATH.CONTENT 4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm. Guiding Ideas Materials: Headphones with mics, Math notebooks and pencils …

\$12.50
Course Duration

Last Updated

### July 21, 2021

Students Enrolled

Instructed by

### Bria Johnson

• #### Subtraction and regrouping with Bria Johnson Monday 6pm-8pm EST July 26th

This class will meet on Monday July 26 6pm-8pm EST. Students will use Minecraft

4 / 14
July 19, 2021
July 19, 2021
• #### Subtraction and regrouping with Bria Johnson Tuesday 6pm-8pm July 27th

This class will meet on Tuesday July 27 6pm-8pm EST. Students will use Minecraft

4 / 14
July 20, 2021
July 20, 2021

Students will use Minecraft to explore and build math models of base 10 subtraction problems. It's a whole new way of learning!

## Learning Objectives

#### Common Core Standards:

• CCSS.MATH.CONTENT 4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.

## Guiding Ideas

#### Materials:

Headphones with mics, Math notebooks and pencils (colored pencils and graph paper are good for this too) Whiteboard and markers Begin the class with a discussion leading around these questions: 1) What is regrouping? 2) How does regrouping work with addition? a) Do an addition problem or two with them using the standard algorithm 3) In addition we regroup forward, is it possible to regroup backwards? 4) Can I trade one \$10 bill in for ten \$1 bills? Next Unveil the big idea:

## Student Activities

To begin, show and explain a 3 digit subtraction problem that uses the standard regrouping algorithm then have students load the attached single player Minecraft world focused around Subtraction. Students will load the attached Subtraction world, watch instructional videos and build three subtraction problems in Minecraft. Students are encouraged to co-teach and share their knowledge with one another. Students will document their work in portfolios. Problem 1: Subtraction Regrouping not needed Problem 2: Subtraction with Regrouping Problem 3 Subtraction Regrouping Across Zero

#### Debrief Questions

1) How is regrouping the same and different between addition and subtraction? 2) Can I trade in one \$10 bills for ten \$1 bill?

## Performance Expectations

The student did all of the following: 1) The student was able to build, regroup, and solve three base 10 subtraction math model. 2) The student was able to make a video of themselves solving and subtraction problem with regrouping. 3) The student was able to write the standard algorithm for subtraction along with their models.

## Skills

• Creativity
• Critical Thinking

Bria Johnson
United States
0
10

Students