but my ds was first introduced to proofs in Algebra I, here and now in the not-so-dark ages.
polarbear, your son was lucky, in our district Algebra I doesn't have any proofs. Just out of curiosity, what kind of proofs did he have to do (if you remember, of course)?
Very interesting observations about geometry "block". I cannot believe that somebody with strong engineering education is incapable of solving high school geometry problem. Maybe, they just did not want to bother? After all, sometimes you have to make a drawing to solve a problem, it takes time and effort
