# Math Bed Wars!

8-10 yrs old

Math & Economics

Build Minecraft math models that represent the commutative property of multiplication and use them in a mini-game.

Submitted By: Minecraft Education

April 13, 2020

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#### Skills

• Creativity
• Critical Thinking

### External References

Download the world and open with Minecraft: Education Edition.

Associated Engage NY module and lesson.

#### Supporting Files

Slideshow

How To Play Math Bed Wars

Instructions for how to play Math Bed Wars in your classroom.

### Learning Objectives

• CCSS.MATH.CONTENT.4.OA.A.1 Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.

### Guiding Ideas

Materials:

Math notebooks and pencils (colored pencils and graph paper are good for this too)

In the slideshow you will find pictures of Minecraft math models that show commutative property of multiplication. During the discussion you should talk about:

a. How these two models are related?

b. What are the number families?

Introduce the concept of variables with the question does a X b = b X a? Why, why not, or I don’t understand yet?

Unveil the Big Idea:

Multiplication problems are the same backwards and forwards!

### Student Activities

To begin, watch this tutorial video about how to play the Minecraft mini-game "Bed Wars"

Tutorial Video

Building the Sky Map

To set up the game map, students enter the Minecraft World in Creative mode. Next they will build six math models that show the commutative property of multiplication. So if the first array is 4 x 5 = 20, their next array will be 5 x 4 = 20. These math models will be used as the game board and can be strategically used to build bridges to opponents’ beds and to defend your own bed.

Students of the same colored beds are teammates. Encourage them to build strategically together.

No bedrooms: meaning you can not encase your bed in blocks. There must be at least one way in and one way out. Different math models cannot touch.

Peer Review

Tell students we need to check our work and to fly around and peer review your classmates’ math models. After examining the model, label it with the name of the reviewer and the equation the reviewer saw. Meaning, if the reviewer saw something different than the creator, there will be different equations. Once all students have labeled at least six math models and differences found in peer review that have been resolved, start the game.

Best Practices: have students keep track of their number families by writing notes in their math notebooks.

Play Game

Instructions on how to play Math Bed Wars can be found in the External References section.

Playing the game will take 20-30 minutes.

Debrief Questions

1) How did you strategically build your math models?

2) Does a X b = b X a, why or why not?

### Performance Expectations

Student was able to complete all four of the following:

1. The student was able to build and explain six Minecraft math models that show the commutative property of multiplication.

2. The student was able to label their Minecraft math models with correct equations with slates.

3. The student was able to peer review the Minecraft math models and slates of others to check for accuracy.

4. The student was able to add design purpose to their Minecraft math models by using them strategically in the game.

#### Skills

• Creativity
• Critical Thinking

### External References

Download the world and open with Minecraft: Education Edition.

Associated Engage NY module and lesson.

#### Supporting Files

Slideshow

How To Play Math Bed Wars

Instructions for how to play Math Bed Wars in your classroom.