Pre – Algebra Monday

• Please write your homework down in your agenda book and have your homework from Friday out.

• Correct homework– Core Workbook p. 45 - 48

• Return and go over Partner Quiz

• Please get out your spiral notebooks– Investigation 3

• Vocabulary

• Begin working on tonight’s assignment– Core Workbook p. 49 - 51

Investigation 3 Vocabulary• Multiplicative inverses

• Two numbers, a and b, that satisfy ab=1• 3 and 1/3 are multiplicative inverses• -1/2 and -2 are multiplicative inverses

• Multiplicative identity• The multiplicative identity for rational numbers is 1• Multiplying any rational number by 1 does not change the value• N(1) = N• 4/9(1) = 4/9• 5/8(3/3) = 5/8

Pre-Algebra Warm-up: Tuesday

1. What does it mean to say that an operation is commutative?

• Use a number line to find each sum

2. 3 + (-8)

3. -4 + 9• Find the sum without using a number line

4. -31 + 16

5. A contestant on a game show has 20 points. She answers a question correctly to win 10 points. Then she answers a question incorrectly and loses 15 points. What is the contestants final score?

Pre- Algebra Tuesday

• Please have your homework on your desk and get started on your warm up.

• Discuss last night’s homework– Core Workbook p. 49 - 51

• Please have your spiral notebooks on your desk– 3.1 Multiplication Patterns

with Integers• Get started on tonight’s

homework– Core Workbook p. 52 - 54

Investigation 3

3.1 Multiplication Patterns with Integers

Focus Question: How is multiplication of two integers represented on a number line and chip board?

What does 5 meters per

second mean?

What does Left or

right tell us?

Positive or

negative?

How do you determine positive or negative?

Pre –Algebra Warm-up- Wednesday• Find the sum

1. -51 + (-9)

2. 20 + (-8)

3. The temperature rose 7 degrees in 3 hours. If the starting temperature was -5 degrees, what was the final temperature?

• Find each product

4. 12(-3)

5. 8(2.5)

Pre-Algebra Honors Wednesday

• Please have your homework on your desk and get started on your warm up.

• Discuss last night’s homework– Core Workbook p. 52 - 54

• Please have your spiral notebooks on your desk.– 3.2 Multiplication of Rational

Numbers• Get started on tonight’s

assignment– Core Workbook p. 59 and 60

Investigation 3

3.2 Multiplication of Rational numbers

Focus Question: What algorithm can you use for multiplying integers?

Warm up Thursday Tell whether each product is greater

than or less than zero.1. 5 (-7)2. 10.5(-4)3. -2 (-3) (-1)

Evaluate x – y for each set of values.

4. x = 14 and y = -25. x = -9 and y=-9

Pre-Algebra

Thursday

• Please have your homework on your desk and get started on your warm up.

• Discuss last night’s homework– Core Workbook p. 59-60

• Please get out your spiral notebooks– 3.3 Division of Rational

Numbers• Get Started on tonight’s

assignment– Core Workbook p. 61 - 63

2/07/14Warm-up:

Pre-Algebra Friday• Please have your

homework on your desk and get started on your warm up.

• Discuss last night’s homework– Core Workbook p. 61 - 63

• Class Assignment– Core Workbook p. 64 - 66

• Turn in weekly assignment sheet