this is 5th grade question. Don't need to do 方程题. they will lear

来源: janeice65 2012-08-10 08:04:09 [] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (312 bytes)

 方程题 late (坐标图上给两点。告诉你是这两点在一条直线上。问这直线的斜率). this is not a real 方程题 for 5th kid. you made this simple question complicated and confused your kid. This is the american way of learning math.

  Two level of gf: academically talented or intellectually gifted

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你是说就是用数格子的办法,y轴比x轴吗?那我老大倒是用这办法做的。我还觉得他用的办法不正规。 -云中飞燕- 给 云中飞燕 发送悄悄话 云中飞燕 的博客首页 (0 bytes) () 08/10/2012 postreply 08:35:08

right -janeice65- 给 janeice65 发送悄悄话 (0 bytes) () 08/10/2012 postreply 08:38:04

also, the question is about ratio not 直线的斜率. -janeice65- 给 janeice65 发送悄悄话 (217 bytes) () 08/10/2012 postreply 08:56:46

but it is asked for slope not ratio. -云中飞燕- 给 云中飞燕 发送悄悄话 云中飞燕 的博客首页 (0 bytes) () 08/10/2012 postreply 09:00:09

Right. The teachers prefer the former one, as most of the other -cat69- 给 cat69 发送悄悄话 (36 bytes) () 08/10/2012 postreply 08:56:00

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