[中學] 負負得正
請問 如何向學生舉例說明負負得正??
有想到一個方法, 就是座標面積問題。
請問還有其它例子嗎??
--
Sent from my Android
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 60.244.69.78
推
10/12 13:24, , 1F
10/12 13:24, 1F
→
10/12 13:24, , 2F
10/12 13:24, 2F
→
10/12 13:26, , 3F
10/12 13:26, 3F
→
10/12 13:27, , 4F
10/12 13:27, 4F
→
10/12 13:29, , 5F
10/12 13:29, 5F
→
10/12 13:33, , 6F
10/12 13:33, 6F
→
10/12 13:35, , 7F
10/12 13:35, 7F
→
10/12 13:36, , 8F
10/12 13:36, 8F
→
10/12 13:37, , 9F
10/12 13:37, 9F
→
10/12 13:39, , 10F
10/12 13:39, 10F
→
10/12 13:39, , 11F
10/12 13:39, 11F
推
10/12 18:26, , 12F
10/12 18:26, 12F
推
10/15 22:33, , 13F
10/15 22:33, 13F
→
01/02 15:33,
5年前
, 14F
01/02 15:33, 14F
→
07/07 11:31,
4年前
, 15F
07/07 11:31, 15F