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[quote=Anonymous][quote=Anonymous]This was a question from the first unit math assessment done this year in my DC's 3rd grade class: Estimate the difference: 854 minus 349 equals ? A: 300 B: 400 X C: 500 D: 600 (CORRECT ANSWER) [/quote] I had this exact same issue with my kids' FCPS math teachers. They teach estimation in a really stupid, rigid manner. It's 1000x more correct to say that 854 rounds to 850 and 349 rounds to 350. 850-350 = 500. My kid more or less got this problem wrong, and I got into it with the teacher: Estimate: 3.5 + 4.5. Kid said 8. Teacher said 9. The teacher was completely intractable too. I eventually had to tell my kids exactly what the teacher wanted them to do, but also why it's mathematically stupid. Teachers, this is exactly why parents have no respect at all for your intelligence.[/quote]
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