Wednesday 8.28.13 Warm-up (independent, level 0 noise): You have 20 feet of fencing and you want to build a dog kennel that is a perfect square. What will.

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Presentation transcript:

Wednesday Warm-up (independent, level 0 noise): You have 20 feet of fencing and you want to build a dog kennel that is a perfect square. What will the side lengths be? Please complete this in your journal below the CQ Warm-up (independent, level 0 noise): You have 20 feet of fencing and you want to build a dog kennel that is a perfect square. What will the side lengths be? Please complete this in your journal below the CQ Challenge Question: What math symbols do you know and how do they benefit you? Directions: Please come in and get your journal. Skip 2 pages (front and back is 1 page). On the front side of the 3 rd page, write today’s date on the top line. Below the date, write the Challenge Question.

Vocabulary words Discuss the following math vocabulary with your group for 2 minutes. What does each word mean and how can we evaluate it?  Side length  Perimeter  Area  Perfect square

Our Dog Kennel Side length = 5 ft. Perimeter = 20 ft. Area = 25 ft² Perfect square = Yes!!

Squares and Square Roots Square Root: A number that produces a specified quantity when multiplied by itself. Example: 8² = 64 Why doesn’t 8² = 16? Discuss with your group for one minute.

Exponents What is an exponent? 7² 4³ A quantity (or number) representing the power to which a given number is to be raised. What are some examples of exponents? 2² = 4 3² = 9 4² = ? 5² = ? 6² = 36 2³ = 8 3³ = ? 4³ = 64 5³ = ? 6³ = 216 What are these called?

Rational vs. Irrational numbers