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AP Calculus AB

An interactive log for students and parents in my AP Calculus class. This ongoing dialogue is as rich as YOU make it. Visit often and post your comments freely.

Wednesday, September 28, 2005

Test b-LOG

Symbolically, Graphically, and Numerically. Everything we’ve learned from this point on forward has been showed to us in different perspectives. Before I always relied on my graphing calculator on showing me how the function looks like. Like a block of wood. It has 3 different sides. A function isn’t a function when its only represented in one perspective. To give us a mental picture and a better understanding of the function, we need to look at it symbolically (it’s equation), graphically (drawn in a Cartesian plane), and numerically (table of values).

In pre-cal 40, I always had problem with logarithms. The simple statement “A log is an exponent”, was never really planted into my head. I hated logs. I always thought it was something more complicated. All along, one of the units that always took me a long time to work on, is nothing but JUST an EXPONENT. A big shocker. The natural log function, or the ln function, I was never really taught how to use it in pre-cal 40. How we could just plug it in and apply basic rules of logarithm in the equation. It made things more clear to me and a lot easier. How it could be applied on solving unknown exponents.
i.e. Solve for x.


So for those who has problems with logarithms. Some teachers don’t stress this enough, and I shall do it in my test blog…


“A LOGARITHM IS AN EXPONENT.”

Always remember that. If you ever get stuck on a log problem, its probably because you’re forgetting what a log is. “IT IS AN EXPONENT.” Never forget it.

Hope this gets me my one mark. =D




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