焦建利：：我的教育技术学自留地

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返回首页 | BLOGBUS 想了解我是怎样一个人吗？ 你知道世界上此刻谁在BLOG上写了些什么吗？ 教育技术学是独立的学科吗？ 凑个热闹说“社会性软件” 女子十二乐坊对民乐地精彩演绎 在GDAEE2003闭幕式上的讲话要点 What is a Theory ? 可口可乐总裁曾说 说说洋节日 女儿给圣诞老人的信 <<<可口可乐总裁曾说 | 返回首页 | 在GDAEE2003闭幕式上的讲话要点>>> What is a Theory ? johnnie 发表于 2003-12-28 What is a Theory ? Definition of a T heory : "a set of related propositions that suggests why events occur in the manner that they do" (Hoover, 1984) Elements of Formal Theory Structure: hypothesis propositions laws Uses of Theory to organize and summarize knowledge (Littlejohn) to provide patterns of interpreting data (Hoover) to link studies (Hoover) to supply frameworks within which concepts and variables acquire special significance (Hoover) to interpret larger meaning from our findings to provide direction for practice Levels and Purposes of Theory Description of Events -----v Explanation of Events -----v Prediction of Events -------v Prescription and/or control of Human Events Theory : the most advanced and valid knowledge available that can be generalized and applied to may situations. They often establish the framework of the field and helps persons (researchers and practitioners) within the field analyze and synthesize data, organize concepts and principles, suggest new ideas and relations, and even speculate about the future. Beauchamp - a theory may be defined as the knowledge and statements that "give functional meaning to a series of events [and] take the form of definitions, operational constructs, assumptions, postulates, hypothesis, genealizations, laws or theorems." Good practice is based on theory. Theory

• an organized set of statements that allow us to explain, predict, or control events. The theories from which instructional design draws are of two types: Descriptive
• describes phenomena as they are hypothesized to exist. Precriptive
• prescribe actions to take that will lead to certain results. 2003-12-28 | Trackback( 0 ) 看了这些文字，有人说了以下一些话： 这些东西不错啊, 多提供点. POST BY： [King] @ 2004-02-13 13:47 你能喜欢我很开心！ http://edtech.126x.com POST BY： [john] @ 2004-02-16 10:03