Phase II Expansion Project: The Next Generation of Practice Exercises for Computer Science I

计算机科学(31)该项目扩大了问题集(www.problets.org)在《计算机科学导论》(CS1)中的使用。Problets是一个智能辅导系统，提供模拟反馈，并根据学生的学习需求定制问题和反馈。该项目在三个方面扩展了Problet：1)开发：Problet是为C/Java/C#中CS1中通常涵盖的高级命令式和面向对象主题创建的。此外，还开发了基础设施，为学生提供暂停和恢复功能、跨主题定制，并为教师提供调整问题套件以适应他们教授CS1的特定方法的便利。2)评价：对新开发的试题的有效性进行形成性评价，并通过使用试题套装对中一学生累计成绩的影响进行总结性评价。3)传播：在区域和国家会议上举办讲习班，扩大目前的Problet用户和研究人员群体。智力优势：这个项目：1)应用模拟反馈被证明的有效性来帮助学生学习编程；2)提出下一代编程实践系统，其目标是在最大限度地减少时间和精力的同时最大限度地学习；3)开发一个涵盖CS1中典型的命令性和面向对象的主题的实践系统；以及4)研究常规的问题解决实践对CS1学生累积表现的影响。广泛影响：本项目中开发的一套题目可能会影响用C、Java和C#授课的学校的CS1的学习和教学。评价结果在实践系统的最有效特征、定期问题解决实践对学习的影响等问题上影响教育实践。

Computer Science (31)The project expands the use of Problets (www.problets.org) in Introductory Computer Science (CS1). Problets is an intelligent tutoring system providing simulative feedback and customizing the problems and feedback to the learning needs of the student. This project expands Problets in three ways: 1) Development: Problets are created for the advanced imperative and object-oriented topics typically covered in CS1 in C++/Java/C#. Additionally, infrastructure is developed to provide suspend-and-resume capability to students, cross-topic customization, and facility for instructors to adapt the suite of Problets to the specific approach they use to teach CS1. 2) Evaluation: The effectiveness of the newly developed Problets is formatively evaluated, and summatively evaluated through the effect of using the suite of Problets on the cumulative performance of students in CS1. 3) Dissemination: Workshops at regional and national conferences are offered, expanding the current community of Problet users and researchers. Intellectual Merit: This project: 1) applies the proven effectiveness of simulative feedback to help students learn programming; 2) proposes the next generation of practice systems for programming, whose goal is to maximize learning while minimizing the time and effort; 3) develops a practice system that covers all the imperative and object-oriented topics typically included in CS1; and 4) studies the effect of regular problem-solving practice on the cumulative performance of students in CS1.Broader Impact: The suite of Problets developed in this project has the potential to affect learning and teaching in CS1 in the schools that teach with C++, Java and C#. The results of evaluation impact educational practices on issues such as the most effective features of practice systems and the effect of regular problem-solving practice on learning.