Algebra: Factorisation by CROSS METHOD

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[Warming Up] Algebra... after a break...

Today, we revisited the following (after a short break to focus on Data Handling):

• HW4abc (selected questions): Expansion, Factorisation 
• Warming up Worksheet - Page 1 - The focus was factorisation with common factors

Here's the answers (in case some of you did not 'catch' it)

Please be prepared for (page 2)

Note: Answers for HW4abc can be found in the Homework Post in Google Classroom.

Introduction: Data Handling - Statistical Investigation

Some new words/ phrases are introduced during the lesson:

• Data points, Sample Size (n ≥ 30)
• Raw data
• Respondents/ Participants
• Survey (as an action/ process or an instrument to collect information)
• Mean, Mode, Median
• Frequency Table, Tally

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Looking at numbers, statistics from another perspective: Information VS misinformation

Data Handling: Statistical Investigation, simply....

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[Resource] Factorisation by Grouping

Click HERE To access the Youtube clip

[Group Work] Algebra Factorisation - Grouping Method

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[Resource] Factorisation by Common Factors

Click HERE to access the Youtube clip

Click HERE to view the playlist more complex ones... that you would be doing, too! 

[Resource] Factorisation by Special Products

The following clip shows how to factorise quadratic expressions that could be 'derived' from the special Algebraic Identities (or we call them "Special Products" here).

Click HERE to access clip 

Our focus would be the product of the difference, i.e. (A + B)(A - B) = A^2 - B^2

[Group Work] Algebra Factorisation - Special Product (A+B)(A-B)

To be completed by end of Today.

You will need to refer to the feedback for the weekly HW this week

Instructions:
ALL group members will complete the collections assigned. 

Insert Your Name and REMEMBER to label the Question clearly.
e.g. 1A for collection 1, type A

• Collection 1: Groups A & E
• Collection 2: Groups B & F
• Collection 3: Groups C & G
• Collection 4: Groups D & H

• Collection 5: Groups A, D, G
• Collection 6: Groups B, E, H
• Collection 7: Groups C, F

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Click HERE to access Padlet