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On this page, review the notes, go through the slides, watch the videos and do some of the practice sites. Take notes in you math journal which is shared with you in Google Classroom. Make sure to type the vocabulary in the vocabulary column. When you are done, click the "Take the Quiz" picture at the bottom of the page. BE SURE you are ready. You only get one chance at the Quiz.
On this page, review the notes, go through the slides, watch the videos and do some of the practice sites. Take notes in you math journal which is shared with you in Google Classroom. Make sure to type the vocabulary in the vocabulary column. When you are done, click the "Take the Quiz" picture at the bottom of the page. BE SURE you are ready. You only get one chance at the Quiz.
Today's Goal: Today students will be able to represent numbers using exponents.
Vocabulary
Vocabulary
Base: the number used as a factor in a power
Exponent: The number of times a factor is used in a power.
Power: Numbers expressed using exponents
Perfect Squares: Squares of whole numbers
Perfect Cubes: Numbers with three identical whole number factors.
That is, the base is 6 since this is the factor being mukltiplied and the exponent is 4 since that is the number of times the factor is to be multiplied. This NEVER means 6 X 4. It is 6 X 6 X 6 X 6. Evaluated this is 1,296.
Evaluating Powers
Evaluating Powers
Let's say you are asked to evaluate the power to the left, three to the fourth power. Remember three to the fourth power means I need four copies of three combined using multiplication, that is 3 X 3 X 3 X 3.
3 X 3 = 9
9 X 3 = 27
27 X 3 = 81
The same process applies if the base is a decimal or fraction.
3.2 X 3.2 X 3.2
3.2 X 3.2 = 10.24
10.24 X 3.2 = 32.768
Practice Sites
Practice Sites
Otter Rush - Race by yourself or with friends.
Alien Powers - Solve the perfect square or cube before the alien lands.
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