Unit 2 - Algebra & Factoring

In this unit of the course, we will review the algebra skills from grade 9 and expand on them to manipulate equations, solve for missing values, and create the skills required for our future in mathematics.

2.0 - [Optional] Gr. 9 Review of Algebraic Expressions

Mr. Brash's video | Written file

2.1 - Expanding & Simplifying

A: Tues. Sept. 22
B: Wed. Sept. 23

In-Class Lesson: Blank | Filled-in
Mr. Brash's Video Lesson | Video written file

2.1 Helpful Videos:

▶ Mr. Brash's Video
▶ Expanding (Khan)
▶ Area Model (Khan)
▶ Explanation of a Difficult Example
▶ Some special patterns

🏠 2.2 - Greatest Common Factor (GCF)

A: Wed. Sept. 23
B: Thurs. Sept. 24

Mr. Brash's Video | Blank Copy | Filled Copy

2.2 Helpful Videos:

▶ Mr. Brash's Video
▶ Factors (Khan)
▶ GCF (Khan)
▶ Common Factoring (Khan)

2.3 - Factor by Grouping

A: Thurs. Sept. 24
B: Fri. Sept. 25

In-Class Lesson: Blank | Filled-in
Mr. Brash's Video | Video Written File

2.3 Helpful Videos:

▶ Mr. Brash's Video
▶ Factor by Grouping 1 (Khan)
▶ Factor by Grouping 2 (Peter Blake)

2.4 - Factoring Monic Trinomials

Factoring ax2 + bx + c When a = 1

A: Thurs. Sept. 24
B: Fri. Sept. 25

Helpful Videos and Links:

In-Class Lesson: Blank | Filled-in
Mr. Brash's Video | Video Written File

🏠 2.5 - Factoring Non-Monic Trinomials (Decomposition)

Factoring ax2 + bx + c When a ≠ 1 (not equal to 1)

A: Fri. Sept. 25
B: Mon. Sept. 28

Mr. Brash's Video | Blank Copy | Filled Copy


2.5b - Non-Monic Trinomials: The Cross Method

This is a second method (bit of a trick) for factoring non-monic trinomials (when 'a' is not 1). It's just another way of doing it.

Mr. Brash's Video on the Cross Method

2.6 - Factoring: A Difference of Squares

A: Mon. Sept. 28
B: Tues. Sept. 29

Today's video lesson seems long due to extra examples after the 15 min mark. Feel free to stop after 15 minutes.

In-Class Lesson: Blank | Filled-in
Mr. Brash's Video (stop at 7:52) | Video Written File

2.6 Helpful Videos:

▶ Mr. Brash's Video (stop at 7:52)
▶ Difference of Squares
▶ Perfect Square Trinomials

Need help deciding when to use a certain kind of factoring?

Factoring Decision Tree

Video | PDF File

Review for Unit Assessment #2

Cohort A Your Test is Fri. Oct. 2
Cohort B Your Test is Mon. Oct. 5