Do the impossible
Posted in pre-algebra, what can you do with this on Jan 25th, 2009
We’re doing percents of in Pre-Algebra tomorrow. For a good high impact visual review I think this will be helpful to project up onto the board. I am good at making geogebra manipulatives, but I still stink at what you do with ‘em once they’re up on the board. Dan mentioned his trouble in using [...]
Posted in pre-algebra on Jan 14th, 2009
How do you get kids to be good at estimating? How do you get them to make appropriate conclusions from fractions, decimals, and percents? My theory right now begins with some basic memorization. So I’m having all my Pre-Algebra students memorize all the fractions with denominators up to 10. Including the sevenths – which they [...]
Posted in pre-algebra on Jan 11th, 2009
Our next chapter is all about ratios, proportions, and percents. We’re going to start by studying ratios, rates, and unit rates. Here’s my presentation. Find the presentation files in my equations/proportions folder as a .pdf and .tex (source). After last week, our first in three (thanks to Portland’s Snow Fest 2008), I’m trying to use [...]
I don't speak for my school district.
