Year 8 Maths Lesson 7: Addition and Subtraction in Algebra

Learning Objectives:
Substitution involving powers

Resources:
Heinemann 8
WS C4-9 - Mixed simplification
HW Worksheet

Extension Work:

Supplementary Work:

Timing:
Intro (5 min)
Reminder of simplifying:
7f + 8fg - 4f - 6fg
= 7f - 4f + 8fg - 6fg
= 3f + 2fg
5x + 2y - 3xy + 2x
= 5x + 2x + 2y - 3xy
= 7x + 2y - 3xy
1) Identify the pronumeral part of each term
2) simplify like terms
Workbook: 4.7 pg. 158 (15 min)
6, (+9 for fast workers)
Discussion (10 min)
a = 4, b = 10
1) 9a^3
2) 5a^2 - b^3/100 - 5
Workbook: 4.6 pg. 155 (the rest)
1, LHS + RHS
3, 4, 5, 6, 8, 9

Behavioural Management:
Don't be afraid to raise your voice and SHIFT people.
Keep an eye on H-, C-, and the girls

Scaffolding:

Homework:
Worksheet