Once Upon a Time in the Land of Algebra…: Once Upon a Time in the Land of Algebra…
Story 1: Story 1 Two of my favourite things in the world (apart from Maths) are KitKat Chunkys and Haribos … Choose some letters to represent KitKat Chunky’s and Haribos…
PowerPoint Presentation: When I was in the shop the other day, I bought three packets of Haribo, and two KitKat Chunkys… But that wasn’t enough, so I bought one more of each…
PowerPoint Presentation: But even that wasn’t enough, so I bought three more packets of Haribo, and two more KitKat Chunkys… But just before I could eat any of them, my greedy Mum stole six packets of Haribo, and three KitKat Chunkys off me…
PowerPoint Presentation: The shopkeeper felt sorry so me, and so he made sure I left the shop with TWICE as many of each sweet… How many sweets did I leave the shop with…
Story 2: Story 2 Whilst I was watching England play Spain last night, I fancied a little snack, so I poured my self some peanuts in a bowl… Choose a letter to represent the number of peanuts in the bowl…
PowerPoint Presentation: During the first half I ate 6 peanuts… One peanut went down the ‘wrong way’, and I ended up coughing it back up into the bowl…
PowerPoint Presentation: Whilst I was making a cup of tea, my greedy flatmate stole 5 peanuts… Because I caught her ‘red-handed’, she agreed to put some Malteasers in the bowl. Choose a letter to represent the number of Malteasers…
PowerPoint Presentation: I told her that that wasn’t enough to make up for the loss of my peanuts, so she gave me DOUBLE the number of Malteasers… How many peanuts and Malteasers did I end up with in my bowl…
Story 3: Story 3 Last Friday, after a stressful week at The Minster School, I needed a drink of beer, so I went to the pub Choose a letter to represent the price of a pint of beer…
PowerPoint Presentation: Whenever I ordered a pint of beer the barman told me that because of a shortage, the price of beer had doubled… I wasn’t happy, but I was thirsty, so I ordered 3 pints…
PowerPoint Presentation: I was also quite hungry, so I decided to buy some crisps… Choose a letter to represent the price of crisps…
PowerPoint Presentation: It really wasn’t my night, because the barman also told me that the price of crisps had TRIPLED… I was feeling very hungry, so I still bought 4 packets…
PowerPoint Presentation: Just before I left the pub I had one more packet of crisps, and one more beer … How much money did I spent in total…
Algebra 2 18th November: Algebra 2 18 th November We can add or subtract ‘LIKE TERMS’ e.g. m + m = or 6t – 3t = BUT! We CANNOT add or subtract DIFFERENT terms e.g. 5s + 6t IS NOT 8m – 2y IS NOT 2m 3t 11st 6my
PowerPoint Presentation: We can SIMPLIFY expressions by adding or subtracting the LIKE TERMS e.g. 4p + 3t + 2p + 5t = 5x + 8y – 3y – 2x = 6a + 3b - 2c + 4 – b – 3a + c - 2 = 6p + 8t 3x + 5y 3a + 2b – c + 2
I think of a Number…: I think of a Number… I add 2 I add 4 I subtract 3 I subtract 2 I add 6 And I get… 10
I think of a Number…: I think of a Number… I subtract 5 I add 2 I subtract 4 I add 5 I subtract 2 And I get… 21
I think of a Number…: I think of a Number… I multiply it by 2 I multiply it by 3 I multiply it by 3 again I divide it by 6 I multiply it by 2 And I get… 60