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AN 1.2 number lines: one for CW, one for HW. Quick Start Expectations. Come in and sit quietly. Fill in planner and HWRS: Work on Warm-up :. AN p. 20-27 # 9-15, 21-35. At the start of January, Kenji had a balance of $369.53 in his checking account.
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AN 1.2 number lines: one for CW, one for HW
Quick Start Expectations • Come in and sit quietly. • Fill in planner and HWRS: • Work on Warm-up: AN p. 20-27 # 9-15, 21-35 At the start of January, Kenji had a balance of $369.53 in his checking account. What was Kenji’s balance at the end of January? When was his balance the greatest? When was his balance the least?
Warm-up Answers: At the start of January, Kenji had a balance of $369.53 in his checking account. What was Kenji’s balance at the end of January? When was his balance the greatest? When was his balance the least? $286.26 Jan. 15 Jan. 12
Notebook: 10/8/14 AN 1.2: Extending the Number Line How can you use a number line to compare two numbers? (Underline 2 or 3 key words in your question.) Vocabulary: opposites rational numbers negative numbers positive numbers
Rational numbers are numbers that can be expressed as one integer a divided by another integer b, where b is not zero. You can write a rational number in the form or in a decimal form. For a rational number, , why does b have to be nonzero? Are integers rational numbers? Explain. Is zero a rational number? Explain
On this number line where are positive and negative numbers located in relation to 0? Each negative number can be paired with a positive number. These two numbers are called opposites because they are the same distance from zero on the number line, but in different directions.
* What would happen to the values of the numbers if we continue the shown number line to the left? * Which number is less, –999 or –1,000?
p. 12 E C A D B
Number lines can be horizontal or vertical.
115⁰ 113.2⁰ 40⁰ 0⁰ -15⁰ -32.5⁰ -32.7⁰
students may graph on either horizontal or vertical number lines. 1. 2. 3. 4. 5. 6.
x < 3 x ≤ 1 x > -5