Top-Down, Object-Oriented, Active, Collaborative Learning Approach to CS1, CS2

这项工作将产生一个非常需要的，主要修订的第一个序列的计算机科学。商业和工业对当前计算机科学专业的毕业生并不满意。他们需要这样的毕业生：1)完全有能力在团队中工作；2)理解解决问题的方法以及解决方案如何适应组织环境；3)对面向对象的分析、设计和实现有透彻的理解。为了让学生准备好满足这些要求，我们建议他们在第一门课程中就开始团队合作，研究现实问题，并制定自上而下的问题解决方案。为了实现这个解决方案，当前开始序列的自底向上方向将被自顶向下的方法所取代。学生将学习如何用手边的物品解决问题。直到后来，他们才学会修改，再后来，他们才学会创建自己的对象。目前，学生们将他们的大部分初始课程花在了他们用来实现他们开发的算法解决方案的语言的语法和语义上。他们的大部分时间都花在流利地掌握一门特定的语言上。我们建议学生在第一门课程中采用真正的自上而下、面向对象、协作的方法。我们将建立一个对象库，为学生提供详细的笔记和实验练习，以支持这种自上而下的、主动的、协作的学习。

This work will produce a greatly needed, major revision of the first sequence in Computer Science. Business and industry are not satisfied with the current graduates of Computer Science Programs. They need graduates who are 1) fully capable of working in teams, 2) understand problem solving and how the solution fits into the environment of the organization, and 3) possess a thorough understanding of object-oriented analysis, design and implementation. In order to prepare students to meet these requirements we propose to have them begin in the very first course to work together in teams, to look at realistic problems, and develop top-down problem solutions. To implement this solution the current bottom-up orientation of the beginning sequence will be replaced by a top-down approach. Students will be introduced to problem solving with objects which are available to them. Only later will they learn to modify and still later to create their own objects. Currently students spend most of their initial course on the syntax and semantics of the language they are using to implement the solutions to algorithms they develop. Most of their time is consumed in developing a fluency in a particular language. We propose a true top down, object-oriented, collaborative approach for students in the first course. We will develop a library of objects, detailed notes for students, and laboratory exercises to support this top down, active, collaborative learning.