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Evaluating Numerical Expressions with Exponents

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Curipod generated lesson: "Evaluating Numerical Expressions with Exponents". #5-7

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jgill15

Updated 5 months ago

1. Word cloud
120 seconds
What is an exponent?
2. Slide
60 seconds
"SWBAT solve a variety of numerical expressions that contain exponents."
Learning objective:
3. Slide
60 seconds
Exponents are a way to express repeated multiplication. To evaluate an expression with an exponent, multiply the base number the number of times indicated by the exponent. For example, to evaluate 4^3, you would multiply 4 by itself three times, which equals 64.
Evaluating Numerical Expressions with Exponents
4. Slide
60 seconds
Exponents: A number that indicates how many times a number is multiplied by itself. For example, the expression 'x^2' means that x is multiplied by itself twice. Order of Operations: The order in which operations must be done when evaluating an expression. Exponents must be done before addition and subtraction. Evaluating Expressions: The process of calculating the value of an expression using the values of the variables and the order of operations.
Concepts:
5. Slide
60 seconds
Exponents are used to represent repeated multiplication. For example, 2^3 is equal to 2 x 2 x 2, or 8. The '^' symbol is used to represent an exponent. It is also sometimes referred to as the 'caret' symbol. The base number in an exponent can have a negative value. For example, (-2)^3 is equal to (-2) x (-2) x (-2), or -8.
Did you know?
6. Poll
30 seconds
Work together in pairs: True or False? 2^4 = 2 * 4 Explain your reasoning.
  • True
  • False
7. Open question
180 seconds
Work together in pairs: Fill in the blank: 3*3*3*3*3 = 3^__
8. Drawings
270 seconds
Brain break: Draw a penguin like a rocket ship into outer space.
9. Open question
180 seconds
Match the expression with its equivalent value by dragging the value to the corresponding expression. Expressions: 5^3, 5^2, 3^2 Values: 25, 9, 125, 10
10. Poll
60 seconds
What is the value of x in the expression 2^x = 16?
  • 4
  • 3
  • 2
  • -4
11. Poll
60 seconds
Which of these expressions equals to 27?
  • 3^3
  • 4^3
  • 5^2
  • 6^4

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