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Over time, children shift from using less optimal strategies for solving mathematics problems to using better ones. But why do children generate new strategies? We argue that they do so when they begin to encode problems more accurately; therefore, we hypothesized that perceptual support for correct encoding would foster strategy generation. Fourth‐grade students solved mathematical equivalence problems...
The study is based on a “Lesson Study” project in China. It is aimed to reveal the development of teachers' reflection ability from two aspect, reflective level and reflection content. 120 reflection journals are collected from 40 teachers in primary and middle schools and analyzed by Content Analysis Method. The results are as follows: First, teachers' reflective levels improved significantly from...
As one of the major classes in the computer science and technology, the most important part of studying Discrete Mathematics is self-study after class. This article provides a method of great validity for students to review after class, to finish assignments and programs, as well as a bilingual assignment for improving the students' English. Students can study with great interest and high efficiency,...
We present in this paper a computational model for controling the gaze direction of a pedagogical agent. We are using a methodogical approach based on digital video corpora. A video corpus was collected. A subset of this corpus was annotated. Rules allowing for controling gaze direction of an agent were then obtained through statistical analysis on the annotations.
This paper gives a personal account of some developments in automata theory and computational complexity theory. Though the account is subjective and deals primarily with the research areas of direct interest to the author, it discusses the underlying beliefs and philosophy which guided this research as well as the intellectual environment and the ideas and contacts which influenced it. An attempt...
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