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Do Now 9/17/09

Do Now 9/17/09. Take out HW from last night. “One Left Out” worksheet Copy HW in your planner. Text p.68, #20-50 evens In your journal, continue to work on the NJASK7 prep question from yesterday. 1) 3 + 5 x 9 2) 25 – 65 / 5 3) 24 / 6 x 4 4) 16 – 8 + 9 5) 45 – 4 x 5 6) 9 + 6 / 3

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Do Now 9/17/09

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  1. Do Now 9/17/09 • Take out HW from last night. • “One Left Out” worksheet • Copy HW in your planner. • Text p.68, #20-50 evens • In your journal, continue to work on the NJASK7 prep question from yesterday.

  2. 1) 3 + 5 x 9 2) 25 – 65 / 5 3) 24 / 6 x 4 4) 16 – 8 + 9 5) 45 – 4 x 5 6) 9 + 6 / 3 7) 9 – (8 – 7) 8) 32 / (8 / 4) 9) 50 – (20 +30) 10) 48 / (4 + 12) 11) 12 x (36 / 9) 12) 17 + (7 – 6) 13) (10 – 6) + (12 + 9) 14) (1 +4 ) x (2 +3) 15) [15 – (4+1)]² Homework“One Left Out” The keys of a piano.

  3. Objective • SWBAT graph and compare positive and negative numbers.

  4. Section 2.1, “Use Integers and Rational Numbers” WHOLE NUMBER a number that is whole (no decimal) and positive. 0, 1, 2, 3, …

  5. INTEGER all whole numbers and there opposites. … -3, -2, -1, 0, 1, 2, 3, …

  6. RATIONAL NUMBER numbers that can be written as the quotient of two integers (a fraction). … -3,-2.5, -2, -1 ½, -1, 0, 1, 1 ½, 2, 2.5, 3, …

  7. REAL NUMBER the set of all rational and irrational numbers.

  8. Using the categories REAL NUMBERS, INTEGERS, RATIONAL NUMBERS, and WHOLE NUMBERS label the VENN diagram below.

  9. Real Numbers Rational Numbers Rational Numbers numbers that can represented as a ratio or fraction Integers Integers -3,-2,-1, 0,1,2,3… Whole Numbers Whole Numbers 0,1,2,3,4,5…

  10. OPPOSITES • Two numbers that are the same distance from ZERO. -5 -4 -3 -2 -1 0 1 2 3 4 5 negative zero positive What is the opposite of -3? Opposite of -3 = 3

  11. ABSOLUTE VALUE • The distance a number is away from ZERO. Distance is always positive. -5 -4 -3 -2 -1 0 1 2 3 4 5 negative zero positive What is the absolute value of -4? or |-4| |-4| = 4 What is -|-4| -|-4| = -4

  12. CONDITIONAL STATEMENT • Has a hypothesis and a conclusion. An IF-THEN STATEMENT is a conditional statement where the ‘if’ is the hypothesis and the ‘then’ is the conclusion. • IF-THEN STATEMENTS are either TRUE or FALSE. • If the statement is FALSE, solve it by providing a COUNTEREXAMPLE. FALSE; the number would be negative. If a number is positive, then its opposite is positive. If a number is a rational number, then the number is an integer. FALSE; 0.5 is an example of a rational number that is not an integer.

  13. Homework Guided Practice • Text p. 68, #11-16 • Text p.68, #20-50 even

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