1. Equivalent Expressions
10 April, 2019
Equivalent Expressions
L.O. To simplify algebraic expressions (Level 5)
Starter
a + 2b + c
a + b + b + c
3a + 4b + c + 4
2a + 2b +1
a + b
b + c
a + 2b + c + 3
a + b + a + b + 1 a b c
a + b
a + b + 1
b + c +2
For each block find the sum of the two
blocks underneath.

2. Algebraic pyramids Now try the ‘Algebraic Pyramids’ worksheet
Equivalent Expressions
L.O. To simplify algebraic expressions (Level 5)
Algebraic pyramids
Now try the ‘Algebraic Pyramids’ worksheet
(10 ticks level 5 pack 5 pages 14 and 15)

3. + 2a + 3b – a + 4b When there are negative terms! 3b + 4b 2a - a a 7b
Equivalent Expressions
L.O. To simplify algebraic expressions (Level 5)
When there are negative terms!
2a + 3b – a + 4b
The negative sign stays with the term immediately after it.
3b + 4b
2a - a
10 QQ a + 7b

4. Refer to notes in text book on algebraic notation
Equivalent Expressions
L.O. To simplify algebraic expressions (Level 5)
Refer to notes in text book on algebraic notation
Simplifying algebraic expressions

5. PLENARY Whiteboard activity 9a + 8b Simplify 5a + 6b + 4a + 2b
Equivalent Expressions
L.O. To simplify algebraic expressions (Level 5)
PLENARY
Whiteboard activity
9a + 8b
Simplify a + 6b + 4a + 2b
Can you think up an expression for the rest of the class to simplify?
You will need to know the answer to your own question!!!!
8x + 18y
Simplify y + x + 7x + 12y
5t + 27b
Simplify t + 6b t + 21b