I'm currently planning my pre-calc unit on logarithms and I just can't seem to find enough fun ways to drill logarithms. It really is just about practice I think, but I HATE giving students worksheets full of problems. I groan every time I see a Kuta software
worksheet. I know that games basically just do the same thing in a dressed up form, but at least there's a measure of competition or strategy that gives students a focus. I just read Amy Gruen's post
on practicing logarithms and almost threw out some expletives because I saw her link to logarithm dominoes and I spent a nice chunk of time last weekend to making my own logarithm dominoes. Its both wonderful and incredibly frustrating to spend hours on something then find that someone got there first and did it better. At least you know your idea was good, but you could have saved yourself so much time! (this happened to me last year with Kate Nowak's logarithm laws worksheet
. I'd made one for myself then stumbled upon hers and hers was so much better!) But fortunately for me, Amy Gruen's logarithm dominoes are very different from mine, so I thought I'd share what I came up with.
I threw together the following logarithm property dominoes. I haven't had a chance to try them out yet, so I'm not sure the ratios are correct. But I figured it was a start and I don't know when I'll have the initiative or time to post them again. Here are the dominoes:
You should be able to play any domino game with these cards that you want but I planned to play the game "all threes". Here are the rules:
- Each player draws 5 dominoes. You start by playing a double domino (one end
equals the same number as the other end: 2-2 for example)
can build off the double domino in 4 directions- above, down, left and
right. To play off a domino, you must
match ends that have the same value.
- Players take turns placing dominoes.
- If a player can’t place a domino, they must draw more
dominoes until they can play.
- After each player places a domino, count up the total of all
loose ends. If the total is a multiple
of 3, the player gets that many points.
- The game ends when either a player runs out of dominoes in
their hand or when a player reaches 100 points.
If a player runs out of dominoes in their hand, the player with the most
Since these are logarithm expressions and not straight forward pips, players must make the conversions in their
head or on paper.
Now I just need to figure out a fun way to teach solving logarithm and exponential equations....
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