Exploring Square and Cube Numbers in Grade 8 Math

The video introduces the concept of square and cube roots through engaging stories set in magical forests. It explains how square roots and cube roots work, using examples and algebraic expressions. The importance of memorizing these roots is emphasized, with suggestions for techniques like flash cards. The lesson concludes with a call to practice and retell the stories, encouraging kindness and perseverance.

What materials are suggested for the lesson on square roots and cube roots?

• Notebook, ruler, and calculator

• Textbook, pen, and eraser

• Pen or pencil, highlighter, and positive attitude

• Calculator, pen, and paper

In the magical square root forest, what happens when you go through the secret passage?

• You remain the same

• You become a twin

• You split into two and both escape

• You split into two but only one escapes

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CCSS.RI.1.4

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What is the result of 16 going through the secret passage in the square root forest?

• 2

• 4

• 1

• 8

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CCSS.8.EE.A.2

In the cube root forest, how many parts do you split into?

• Four

• Three

• Two

• Five

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CCSS.HSA.REI.A.2

What is the cube root of 8?

• 4

• 2

• 8

• 16

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CCSS.8.EE.A.2

How is a square root defined algebraically?

• a^3 = a * a * a

• a^2 = a * a * a

• a^2 = a * a

• a = a * a

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CCSS.8.EE.A.2

What is the result of 3 cubed?

• 9

• 27

• 6

• 81

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What is 7 squared?

• 77

• 49

• 21

• 14

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What is the trick to remember 11 squared?

• Split 1 and 1, then add to get 2

• Multiply 1 by 11

• Subtract 1 from 11

• Add 1 and 1, then multiply by 11

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CCSS.6.EE.A.1

What is 25 squared?

• 825

• 725

• 625

• 525

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CCSS.6.EE.A.1