Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.

最大的悲剧不是死亡，而是被遗忘。

"The poem is a place where the unspeakable can be spoken."

随机评估可以帮助我们了解发展中哪些措施有效，哪些无效。

真相很少是纯粹的，也从来不是简单的。