## Unit 1 - Linear Systems

By the end of this unit, students will be able to solve a system of linear equations using a variety of strategies, solve problems that are modelled by linear equations or systems of linear equations, and describe the relationship between the number of solutions to a system of linear equations and the coefficients of the equations.

Links will become live when the content is available. Follow the dates. When in doubt, check your calendar (Cohort A | Cohort B).

### 🏠 1.1 - Solve Linear Systems by Graphing

A: Tues. Sept. 15
B: Wed. Sept. 16

Mr. Brash's Video Lesson
Lesson Files: Blank | Teacher-Filled

Sign-In to Mathspace: (need to be logged in to @ocsbstudent)

Other Videos:
Solve by Graphing
Lines & Slope
Testing a Solution

### 1.2 - Solve by Substitution

A: Wed. Sept. 16
B: Thurs. Sept. 17

Lesson Files: Blank | Teacher-Filled
Mathspace Practice (Homework)

### 1.3 - Solve by Elimination

A: Wed. Sept. 16
B: Thurs. Sept. 17

Lesson Files: Blank
Mathspace Practice (Homework)

### 🏠 1.4 - Applications involving Linear Systems

A: Thurs. Sept. 17
B: Fri. Sept. 18

The substitution and elimination lessons seemed to catch the class by surprise. I know this is a lot of new math in a short timeframe. Unfortunately, that's because you have 2 courses per day instead of 4. This means double lessons in each course - every day. Anyway, I am cutting down the 1.4 lesson - read below...

1. Finish the KnowledgeHook quiz for Review of Gr. 9 (if you haven't already). Instructions were emailed to you and demonstrated in class.

2. Complete the 1.2 and 1.3 practice in Mathspace. These skills are crucial.

3. Try to solve this one word problem on paper and bring your solution to class:
Matthew’s piggy bank contains 308 quarters and nickels. If Matthew has a total of \$33.60 in his piggy bank, how many quarters and nickels does he have?

### 1.5 - Length of a Line Segment (Distance)

A: Fri. Sept. 18
B: Mon. Sept. 21

Lesson Files: Blank | Teacher-Filled
Mathspace Practice (Homework)

Mr. Brash's video for Distance / Length
A playlist on distance

### 1.6 - Midpoint of a Line Segment

A: Fri. Sept. 18
B: Mon. Sept. 21

Lesson Files: Blank | Teacher-Filled
Mathspace Practice (Homework)

### 🏠 Review of Unit 1

A: Mon. Sept. 21
B: Tues. Sept. 22

Go over your notes, and the lessons 1.1 to 1.6!

Review Video(s):

Don't forget Mr. Brash's videos linked in the lessons.
Solve by Graphing
Playlist on Substitution
Playlist on Elimination
Playlist on word-problems
Playlist on Distance
Playlist on Midpoint

### Unit 1 Extra Practice

Some have answers, the rest you can check on Desmos.

### Unit 1 Assessment is in-class on the following dates:

Cohort A - Tuesday, September 22nd
Cohort B - Wednesday, September 23rd

Students who utilize the resource room or use extra time from their IEP are strongly recommended to stay in the room and only move to resource once the first 75 minutes have passed. Resource teachers will be checking on us as we work.