The document provides information about a pre-algebra class that covers topics like the number line and rational numbers. It includes warm-up problems, homework assignments, and discussions of investigations into extending the number line and using it to represent number sentences for changes in temperature. The class materials are aimed at helping students understand rational numbers and how to use the number line to compare numbers and represent number sentences.

1. Warm up: Pre- Algebra
• Identify which temperature is further from -1.
1.) 6 and -6
2.) -7 and 3
3.) 2 and – 7
4.) -10 and 7
5.) 0 and 10

2. Pre-Algebra
Monday
• Please have your homework
on your desk and get started
on your warm up.
• Discuss last night’s
homework
– Labsheet Exercise 48
• Please have your spiral
notebooks on your desk.
– 1.2 Extending the Number Line
• Get started on tonight’s
homework
– ACE worksheet # 1- 22

3. Investigation 1
1.2 Extending
the Number
Line
Focus Question: How can you use a
number line to compare two
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 decimal form.
b
a
b
a

4. • 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.
• To avoid confusion with operation signs, you can use
raised signs to show negative numbers

5. Pre-Algebra Tuesday
• Please have your homework
on your desk and get started
on your warm up.
• Discuss last night’s
homework
– ACE worksheet # 1- 22
• Discuss Problem 1.2
• Homework: Problem 1.2

6. Pre-Algebra
Tuesday/Wednes
day
• Please have your spiral
notebook on your desk and
get started on your warm
up.
• Please have your spiral
notebooks on your desk.
– 1.3 From Sauna to
Snowbank
• Get started on tonight’s
homework
– Problem 1.3

7. 1.3 From Sauna to Snowbank
Focus Question:
How can you write a number sentence to represent
a change on a number line, and how can you use a
number line to represent a number sentence?