chalk talk

基本解释

The coach gave his team a chalk talk before the game.
教练在比赛前给队员们连写带画地讲解了一番。
SINCE the beginning of mass education, schools have relied on what is known in educational circles as “chalk and talk”.
自从大众教育兴起以来，学校教育的主要方式一直是所谓的“粉笔和说教（注入式教育）“。
Instead of chalk and talk, children learn by doing—and do so in a way that tears up the usual subject-based curriculum altogether.
这样再也不需要“笔头和口头”，孩子们通过实践去学习，而且各种知识交织在一起，再也不用人为的去把它们划分开来。

It includes one hour of classroom instruction, video demonstrations and chalk talk, a half-hour track and vehicle orientation, lunch, and four and a half hours of track exercises in front and all-wheel-drive vehicles.
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And the only reliable way to make their case is, surely, to conduct a proper study, with children randomly allocated to teachers who use computers and teachers who use other methods, including the cheapest of all: chalk and talk.
ECONOMIST: Not helpful
Collaboration and communication help us understand the world around us better than simply sucking up information from one-way sources such as the textbook and chalk-and-talk teacher.
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an informal lecture with pertinent points, explanatory diagrams, etc, shown on a blackboard