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Archive for October, 2009

Thanks Mr Juang

October30

Mr Juang – thank you so much for doing your Prac with our Year 9 Maths class. We really enjoyed your teaching and help for each student. God bless you in your teaching and we hope to have you contribute ono this blog site.

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Interact!

October30

It was great to see some comments coming through. We had a test on Straight Lines today and a few struggled. Don’t give up! A test is designed to help you find out what needs more revision, and to confirm what you have learned in class. Of course, it helped that the test today was […]

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Finding Gradient when given Two Points

October27

A cool trick is to find the gradient when we are just given two points. e.g. Point A (3,-5) and Point B (0,4) The gradient = rise/run or (in maths language) difference in y values divided by difference in x values Therefore, starting at the same point (A), rise/run = -5-4/3-0 = -9/3, or, gradient […]

Tuesday’s Amazing Lesson

October27

Today you were challenged to find the equation of a straight line when you were given the following information – the gradient and a point the line goes through. For example, Find the equation of a straight line that has a gradient of -2 and that goes through the point (5,7) Solution: If the gradient […]

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Straight Line Geometry

October26

We have covered most of the basic rules regarding straight lines. To check out your knowledge of using the straight line equation (y=mx+c) check out this website¬†– in particular, Straight Line Graphs 1 and Straight Line Graphs 2. You can discover what happens when you change the “m” value, and “c” value to see how […]

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