我带学生做组会报告时，最反对的不是 PPT 丑，而是把【我做了什么】当成【你该怎么判断】。【锚点】会议展示里最容易被误读的，不是【语速】，而是【认知负荷】：听众不是空容器，他们带着【旧问题】和【有限工作记忆】进入。 【显式｜认知负荷】12分钟报告里，听众能稳定携带的通常是少数几个组块，而不是一整页方法。Sweller 1988 提出认知负荷理论，Mayer…
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