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皮亚杰认知发展四阶段及特点
感知运动阶段(特点是个体通过感、知觉动作来适应外部环境,手的抓取、嘴吸吮来探索世界);前运算阶段(特点是个体逐步掌握符号、表象的概念);具体运算阶段(特点是个体获得长度、体积、重量和面积等的守恒);形式运算阶段(特点是个体超越对 ...
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今日热点
Lets revoke parole program
Tariffs back on for now
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Deaf Americans sue Trump
Prosecution rests its case
Unveils new supercomputer
National Spelling Bee winner
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Canada wildfires spread
ICE leadership overhaul
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Saharan dust heads for FL
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US govt. employee charged
SCOTUS narrows NEPA
To run for US Senate
On US-China trade talks
To challenge Graham
Powell meets with Trump
US scholar leaves Thailand
Foreign student ban halted
Ex-banker sentenced
Beef stew recall
MLB announces investment
Harrison Ruffin Tyler dies
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