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Back to Year 11 Maths 101

Term 2 Week 4: 11 - 15 May
This week we'll be working more on Trig, getting used to methods of finding missing sides and angles in right-angled triangles. I'll show you a short-cut on Monday. It is useful to see the "Cover-Up" Method before too long as it does make it seem a lot easier.

Make sure you're up to date with your homework.

Week 8: 23 - 27 March
This week we're winding up the CAT topic. There'll be a quiz, some new stuff and an end of topic test.

The new stuff is: __Simplifying Rational Expressions__ (Hwk book p 38 - 41) __Algebraic Fractions__ (Hwk book p 12 - 14)

Week 7: 16 - 20 March
On Monday and Wednesday we'll do some more work on Solving Quadratic Equations. Remember that solving these equations with x 2 in them depends on two things multiplying to give you 0 so you need
 * to make sure the equation has 0 on one side of the =
 * to put it into brackets (factorise)
 * to work out what fits to make EACH bracket equal to 0.

eg Solve x 2 + 3x - 4 = 0 // Think: two things multiplying to be 0 // ie solve (x + 4)(x - 1) = 0 // Think: what fits? // solutions are -4 and 1 // You must have __both__ solutions //

eg Solve x 2 + 4x - 21 = 0 (x - 7)(x + 3) = 0 x = 7 or -3

Some equations are harder to factorise than others so we need to cover a few variations.


 * Hwk Book: p 37**

(Excellence questions might involve word applications, these will be seen in time.)

On Thursday we'll start solving Simultaneous Equations. This is when you are given two equations with two different letters to work out values for. The process is pretty straightforward but some people find the more difficult part is when you are given word problems and you need to write the equations in the first place before you can solve the equations.


 * Hwk Book: p 44 - 58**

There are plenty of examples of word problems and lots of problems to try out in the last few pages. These provide "real" opportunities for you to show that you can use algebra in context and are worthy of higher levels of achievement.

The last thing for us to do is exploring rational expressions p 38 - 41. I think it is good to leave this till last, you might see why when we look at them.