三 )一个数学的连锁串模式 　　国家数学教师协会和几个州已用连锁串模式为数学课程下定义 (见下图 )。 (“连锁串”暗示数学的成份都是必需的、相关的。 )形成连锁串模式，帮助教师意识到数学不仅只是算术，帮助老师成为一个提供数学信息的组织者。它不是一种教的模式；它说明 C) A Mathematical Chain String Model The National Association of Math Teachers and several states have used the chain-string model for the math class definition (see below). (The “chain string” implies that the mathematical components are all necessary and relevant.) Form a chain-string pattern to help teachers realize that mathematics is more than just arithmetic, helping teachers to become organizers of mathematical information. It is not a teaching model; it states