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I find it amusing that you say "imagine it", since it's like this for me. People think differently :) I see 8+3 as a number in the lowish tens. If I want the e
by ramchip 17y ago
I find it amusing that you say "imagine it", since it's like this for me. People think differently :)
I see 8+3 as a number in the lowish tens. If I want the exact result I quickly increment "9-10-11" in my head. Some special cases (0,1,9 and 5+5) are easier.
I guess ability in arithmetic isn't really correlated with ability in calculus, etc., since math has always been my forte.
I'm studying at a japanese university right now and I see the effect of raw memorization daily. It's not pretty. I don't think it's highly underrated.
- RiderOfGiraffes 17y ago> ... raw memorization daily. It's not pretty. > I don't think it's highly underrated. Raw memorization is dreadfully damaging. Equally, having to add 5 and 8 by counting up is a complete block to other tasks. What's needed is a range of techniques and skills, each assisting the others, and each helping students to get that insight that stops math being a collection of tricks and unmotivated rules, and starts it being a coherent set of principles, facts, tools and techniques.
- rdtsc 17y agoI think they should start with memorization, and let each individual develop they own heuristics and shortcuts. When those abstract shortcuts are enforced and don't match with the ones a person is already using, it can get confusing.