**Unit 1 - Linear Systems**

**Unit 1 - Linear Systems**

**By the end of this unit, students will be able to s**olve 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.

### 🏠 1.1 - Solve Linear Systems by Graphing

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

**Mr. Brash's Video Lesson**

Lesson Files: Blank | Teacher-Filled

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

Try this link first: link.brash.ca/ms

OR, go through your Student Portal

Complete the Mathspace Tutorial task

Complete the 1.1 Task (Homework) < Does that link work?

**1.1 Helpful Videos:**

▶▶▶ **Mr. Brash's Video Lesson**** !**

**Other Videos:**

▶ Solve by Graphing

▶ Lines & Slope

▶ Testing a Solution

### 1.2 - Solve by Substitution

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

Lesson Files: Blank | Teacher-Filled

Mathspace Practice (Homework)

**1.2 Helpful Videos:**

▶ Fantastic Playlist on Substitution

▶ Dealing with Fractions

### 1.3 - Solve by Elimination

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

Lesson Files: Blank

Mathspace Practice (Homework)

**1.3 Helpful Videos:**

▶ Example of Elimination

▶ Advanced Example of Elimination

▶ The King's Cupcakes

### 🏠 1.4 - Applications involving Linear Systems

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

**SLIGHT CHANGE OF PLANS. PLEASE READ:**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...

**For your 2nd day of @****🏠 learning, ****please do the following:**

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

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

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?*

Feeling adventurous?

**1.4 Helpful Videos:**

▶ An entire playlist of word-problems

▶ The King's Cupcakes (elim.)

▶ The King's Potato Chips (elim.)

▶ The King's Potato Chips Again (subs.)

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

A: Fri. Sept. 18**1.5 - Length of a Line Segment (Distance)**

**B: Mon. Sept. 21**

Lesson Files: Blank | Teacher-Filled

Mathspace Practice (Homework)

**1.5 Helpful Videos:**

▶ **Mr. Brash's video for Distance ****/ ****Length**

(sorry about the intro...)

▶ A playlist on distance

**1.6 - Midpoint of a Line Segment**

A: Fri. Sept. 18**1.6 - Midpoint of a Line Segment**

**B: Mon. Sept. 21**

Lesson Files: Blank | Teacher-Filled

Mathspace Practice (Homework)

**1.6 Helpful Videos:**

### 🏠 **Review of Unit 1**

**Review of Unit 1**

**A: Mon. Sept. 21**

B: Tues. Sept. 22

B: Tues. Sept. 22

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

**Mathspace Review Task**< Hopefully that link works?**Practice Test**from 2018 (**solutions**)

**Review Video(s):**

Don't forget Mr. Brash's videos linked in the lessons.

Great Khan Academy links:

▶ Solve by Graphing

▶ Playlist on Substitution

▶ Playlist on Elimination

▶ Playlist on word-problems

▶ Playlist on Distance

▶ Playlist on Midpoint

**Unit 1 Extra Practice**

**Unit 1 Extra Practice**

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

Solving Linear Systems (graphing, substitution, elimination)

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

**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.