The question first:
In Algebra 2, during review, I ran into a few older Regents exam
questions about the discriminant. Why, if the discriminant is
negative, do you get "two imaginary roots"? You don't. You get two complex roots;
imaginary numbers are a subset of the complex numbers. 3+2i is NOT an
imaginary number. Why the shift from correct vocabulary in one unit
(A2.N.8 Determine the conjugate of a complex number) to incorrect
vocabulary in another unit? Example: Jan 2011, #2.
And, I know that the quantity of stuff in the core has been pointed out
before, but this weekend, I really thought "wow." I did three separate
4 hour review sessions for students in Algebra, Geometry, and Algebra
2. Relatively good students (as if that needed to be said - 4 hours of
review on a Sat or Sunday?) But, Geometry: started at G.G.1,
covered every one of them through G.G.74 - 100% of course in 4 hours,
almost on the dot, including one full Regents, and every proof since
2005. Algebra - had to take a couple breaks with the one year younger
students. Still, from A.N.1 through whatever it goes to, we hit about
90% of them, plus a full Regents exam. Algebra 2... This was the
3rd weekend that I did 4 hours of review with them. TWELVE hours of
review, and we're close, but not quite through 100% of the core
indicators.
-Tom Kenyon*******************************************************************
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