This document provides an overview of the daily lessons and assignments for a Pre-Algebra class over the course of a week. It includes warm-up problems, homework assignments from the textbook, discussions of previous lessons, and introductions to new topics like multiplication patterns with integers and division of rational numbers. The class will cover investigations and vocabulary related to rational numbers and operations involving integers.

1. 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

2. 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

3. 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?

4. 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

5. Investigation 3
3.1
Multiplication
Patterns with
Integers
Focus Question: How is
multiplication of two integers
represented on a number line and
chip board?

9. 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)

10. 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

11. Investigation 3
3.2
Multiplication
of Rational
numbers
Focus Question: What algorithm
can you use for multiplying
integers?

14. 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 = -2
5. x = -9 and y=-9

15. • 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

19. Warm-up:

20. • 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