Teaching on topic: logarithms
I arrived in a bad spot.
I do not think I properly lined up my ducks before reaching logarithms. And now I’m sort of stuck.
The book, my text, uses “inverse functions” as the segue. And I’ve walked right up to that line, and realized I would have preferred to approach from another side.
Blame the book. Blame the over-packed curriculum. Blame the teacher’s poor planning (well, no, please don’t).
I’m not so wild about teaching at almost the same time as teaching what a log is. But maybe I’m wrong. Could we introduce logs back when we work with exponents in Algebra I? Probably too abstract?
So while I’m not so wild about where I’ve ended up, I’m not sure I have or had a real alternative.
I will use part of the idea from Kate(t)’s neat intro log lesson. And I will make them look like a puzzle. Students like puzzles. And I will separately and carefully get them to graph and its inverse, without clearly making the links. And if all goes well, one kid, then another, will notice the links, the idea will be shared around, and all will be well with the world…
We’ll see. And if I don’t report back…