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Today’s Objective

Today’s Objective. To be able to represent numbers and group them with symbols. Write down all the different Numbers that you can think of:. fractions whole numbers decimals percents negative. Real Numbers. Rational Numbers. Irrational Numbers. 6,1/2,.8,sqr(25). pi, sqr(2). Integers.

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Today’s Objective

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  1. Today’s Objective • To be able to represent numbers and group them with symbols

  2. Write down all the different Numbers that you can think of: • fractions • whole numbers • decimals • percents • negative

  3. Real Numbers Rational Numbers Irrational Numbers 6,1/2,.8,sqr(25)... pi, sqr(2)... Integers ...-2,-1,0,1,2,... Whole Numbers 0,1,2,... Natural Numbers 1,2,3...

  4. Positive and Negative Numbers • Between what 2 integers do the following live? • 1/3, -5, -1/2, 4.2, |3|, |-3| -6 -4 -2 0 2 4 6 The farther to the right, the bigger the numbers get and the farther to the left, the smaller the numbers get.

  5. Label each Region

  6. Label each Region • Whole • Rational • Integers • Real • Natural • Irrational

  7. Label each Region Real Numbers Rational Integers Irrational Whole Natural

  8. 1.) Whole 2.) Rational 3.) Integers 4.) Real 5.) Natural 6.) Irrational A.) 3/4 B.) 0 C.) pi D.) 5 E.) -7 Bellwork 8/16 Matching List all the numbers that match for each letter.

  9. 1.) Whole 2.) Rational 3.) Integers 4.) Real 5.) Natural 6.) Irrational A.) 3/4 (2,4) B.) 0 (1,2,3,4) C.) pi (4,6) D.) 5 (1,2,3,4,5) E.) -7 (2,3,4) Bellwork 8/16 Matching

  10. Work with a Partner at your table and do the Lesson Investigation on page 2 3 7 5 . • a.) 3/8 = 8 3.000 24 6 0 56 4 0 40

  11. Work with a Partner at your table and do the Lesson Investigation on page 2 • a.) 3/8 = . 375 (finite) • b.) 1/3 = .333… (infinite repeating) • c.) 5/6 = .8333… (infinite repeating)

  12. Work with a Partner at your table and do the Lesson Investigation on page 2 • d.) 5/16 = .3125 (finite) • e.) 4/7 = .571428571 (infinite repeating) • f.) 2/9 = .222… (infinite repeating)

  13. Write these terms in the vocabulary section of your Math Journal • Sum = The answer to Addition • Difference = The answer to Subtraction • Product = The answer to Multiplication • Quotient = The answer to Division

  14. Area Example 2 Cost per Sq. Foot • 1.) Calculate the area in sq. feet • 2.) Multiply the area by the cost per sq. foot • Length = 10 + 84 + 10 = 104 • Width = 10 + 46 + 10 = 66 • Total Cost = (9)(104)(66) = 61,776

  15. Write this term in the vocabulary section of your Math Journal • Numerical Expression = a collection of numbers, operations, and grouping symbols.

  16. Evaluating Expressions • 1.) Evaluate the innermost grouping symbol 1st and then work your way out. • Ex: 12 + [(35  7)  2] • (35  7) = 5 • [5  2] = 10 12 + 10 =22

  17. Do 1-4 of the Guided Practice Guided Practice

  18. Classwork • Do Worksheet 1.1 (2-28 ev.) • Homework pg. 5 (2-28 ev and 35- 38)

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