I'm currently suffering through day 3 of solving systems by substitution in Algebra 1. Oh the pain. I'm thinking I may skip it next year.
Thought of something funny today in Precalc. We did the law of sines yesterday - kids always get confused about the ambiguous case. How do you figure out if there are two solutions? I've normally tell them that if they're only given one angle and they're using the law of sines to check for a second answer.
Here's my new thought: What are we given? An angle and two sides (ASS). What kind of problem is it? A pain in the. . .
The kids appreciated it. :)