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lines.
The basic stuff of any shape. Of course lines come from dots, but they're still quite basic.
However, many people do not know how to draw lines.
Whether it is the curved lines of quadratic equations. Or the number lines of inequalities.
Where it starts; where it ends...
So, I had to draw the line for them.
Where they can start; where they SHALL END
I ( Read more... ) -
life is in inequalities
I've finished the last part of the Quadratic Equations topics. Time to move on. The next chapter is about linear inequalities. Talk about irony.
well most of it is really what people know in daily lives, in symbols and signs. Lke if x > z, and z>y, then x > y.
Then there is addition / subtraction. if x >y, then x+a>y+a and x-a> y-a, 'a' can be ( Read more... ) -
Uses
Finally, we reach the part that intrigues students for ages. What is the use of learning all these?
Typically there are 2 kinds.
1. Those that require 2 unknowns related in a known way (e.g. x and x-2) and you know their product
(e.g. x(x-2) = 4)
This is the easy one.
2. Those that require 2 unknowns related in a known way, and you know the product of ( Read more... ) -
reduced.
I must say. Teaching is really tough.
But it is also really exciting.
More or less like bonsai growing, but much faster. And I get paid to do this! lol
Of course the pay is not all that matters. It is to see the faces of students who struggle through the thick darkness, only to see the light and emerge into civilisation.
Yet the messenger tires himself ( Read more... ) -
sigh...
The General Solution to quadratic equations. This is what every student is waiting for - an instant answer to quadratic equation. The derivation is in the textbook. So are the uses of the formula. I hope my students could understand them. If only they would listen.
I still remember my days, where this formula is remembered by doing lots of ( Read more... ) -
too square for them
Yeah. Thats me. Me with my checkered shirts and black pants. This is totally ruining my reputation as a young thinker!
Well, to couple with it, I had to teach 'Completing the Squares' the other day. Irony? Definitely.
They're learning the method, which is much simpler and more redundant to use, because the questions comprises of an x^2 term, and ( Read more... ) -
black & white
I'm beginning to reflect upon myself now. Somehow, looking at these people whom I was part of sparked off a sense of nostalgia. I am not too old myself, but years in the army formed the ripples on my face. Not to say the rough stones too.
I have 3 classes now. D, F and J. D are dominant with girls. The opposite occurs in J. F, interestingly, is ( Read more... )