an 1.2 number lines: one for cw, one for hw
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
AN 1.2 number lines:one for CW, one for HW
Quick Start Expectations1. Come in and sit quietly.2. Fill in planner and HWRS:
3. Work on Warm-up:AN p. 20-27 # 9-15, 21-35
Date Transaction Balance
January 1
$369.53
January 5
Writes a check for $30.00
January 12
Writes a check for $220.15
January 15
Deposits $352.00
January 17
Writes a check for $85.12
January 21
Withdraws $100.00
What was Kenji’s balance at the end of January?When was his balance the greatest? When was his balance the least?
At the start of January, Kenji had a balance of $369.53 in his checking account.
Date Transaction Balance
January 1
$369.53
January 5
Writes a check for $30.00 −30.00 339.53
January 12
Writes a check for $220.15 −220.15 119.38
January 15
Deposits $352.00 352.00 471.38
January 17
Writes a check for $85.12 −85.12 386.26
January 21
Withdraws $100.00 −100.00 286.26
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?
$286.26Jan. 15
Jan. 12
Warm-up Answers:
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:oppositesrational numbersnegative numberspositive 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
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.
On this number line where are positive and negative numbers located in relation to 0?
* 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
A B C D E
number -7 -4 -1.5 4.5 6.8
opposite 7 4 1.5 -4.5 -6.8
A B C E D
Number lines can be horizontal or vertical.
0⁰
115⁰113.2⁰
40⁰
-15⁰-32.5⁰ -32.7⁰
students may graph on either horizontal or vertical number lines.
1.
2.
3.
4.
5.
6.
x ≤ 1 x < 3x > -5
Homework: AN p. 20-27 # 9-15, 21-35