Dimensions & Tesseracts

Dimensions & Tesseracts

A Wrinkle in Time STEM Extension

2D shapes do not have HEIGHT. They are FLAT.

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Multiple Choice

What is the FIRST dimension

• zero (NOTHING)

• a line (LENGTH)

• a cube (A TALL SQUARE)

Multiple Choice

What is the SECOND DIMENSION?

• a single line (LENGTH)

• width

• a point

Multiple Choice

Which is the dimension where everything is flat?

• 2D

• 3D

• Uriel

When you square a number, it means to multiply that number by itself.

3 x 3 = 9

Multiple Choice

What does it mean to SQUARE number?

• add 3 to the number

• subtract 2 from the number

• multiply the number by itself

Multiple Choice

What is 4 squared? In math, the little 2 means squared:

 $4^2$  

• 8

• 2

• 16

Multiple Choice

Do we live in a 2D world or a 3D world?

• 2D

• 3D

• both

A 3D square is a CUBE. To find its size, you square a side one more time.

3 x 3 x 3 = 27

If you square a number twice, this is called CUBING.

Multiple Choice

What does it mean to CUBE a number?

• To divide in half

• to multiply the number by itself once

• to multiply the number by itself twice

Multiple Choice

What is 2 CUBED? In math, the little 3 means CUBED:

 $2^3$  

• 4

• 8

• 11

A tesseract is a four dimensional cube. 

Here’s a better model. Time in this one is represented by the motion.

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Multiple Choice

What's the FOURTH dimension?

• length

• geometry

• time

Multiple Choice

What is a TESSERACT?

• width

• a magical object

• a 4D cube

Poll

Do you have a better understanding of dimensions?

• yes

• no

• sort of

Open Ended

What is still confusing?