1. Equivalent Expressions L.O. To simplify algebraic expressions (Level 5) abc a + ba + b + 1b + c +2 For each block find the sum of the two blocks underneath. a + b + b + c b + ca + b a + 2b + c 2a + 2b +1 3a + 4b + c + 4 a + 2b + c + 3 2 September, 2014 a + b + a + b + 1 Starter

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

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

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

5. PLENARY Whiteboard activity Simplify 5a + 6b + 4a + 2b 9a + 8b Simplify 6y + x + 7x + 12y 8x + 18y Simplify 24t + 6b - 19t + 21b 5t + 27b 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!!!! Equivalent Expressions L.O. To simplify algebraic expressions (Level 5)