My DS7 had a lot of algebra concepts by pre-k/k/1st grade but wasn't actually ready for Algebra. I think it is so hard to really assess an actual grade level at that age.
On the WJ-III at the age of 5 years 1 month (pre-K)my DS scored grade equivalents of grade 3. He is VERY good at computation but has less of an interest (or talent) in geometry and measurements.
My son is also "unusual" at his school. (Sometimes I feel the teachers are afraid of his math ability since he learns at such a rapid pace) I don't think he has had real math instruction since the age of 5 unless he learns it on his own or I assist him in the evenings.
Last edited by crisc; 11/05/10 11:59 AM.