家长可以进办公室和老师交流情况，也可以进课堂和孩子共同听课，这样的课堂就叫开放课堂。
它们曾经采取开放式教育资源在另一个机构产生课堂使用？
Have they ever adopted an open education resource produced at another institution for in-class use?
此次活动采用开放性课堂的授课，以及及时答疑，及时编程训练的方式，使微软技术俱乐部的同学初步了解了编程的思路。
This activity used the open classroom instruction as well as timely replying questions timely programming training so that MSTC gave students a preliminary understanding of the programming ideas.
开放式课堂教学是国际数学教育和我国基础数学教育的共同取向；
The Open Classroom Teaching is a tendency of elementary mathematics education both at home and abroad.
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