An introductory course in signals requires a wide background of prerequisites covering complex numbers, series, calculus, and basic mathematical logic. Students often fail to engage with the material and find the course difficult because they do not recall the prerequisites. Time and curricular constraints usually limit in-class review. To address these issues, we present SigPrep, a set of open source, web-based preparatory modules for introductory courses in signals. SigPrep is designed as a preclass assignment that students can do independently at a self-set pace. SigPrep is designed in WeBWorK, a widely used platform for free, open source problems for science and math classes. Using WeBWorK features, SigPrep provides students instant feedback and linkages to relevant external e-learning resources as a refresher for concepts in which they fail to exhibit adequate proficiency. Instructors are also able to track students? progress and performance. We outline the pedagogical design of SigPrep, which provides problems of particular relevance and applicability covering prerequisites for signals classes. Finally, we share results and feedback from our own experience with using SigPrep as part of our teaching of an introductory class on signals.

中文翻译：

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SigPrep：用于信号和系统的基于 Web 的开源预工作 [SP 教育]

信号入门课程需要广泛的先决条件背景，涵盖复数、级数、微积分和基本数学逻辑。学生经常无法参与材料并发现课程很难，因为他们不记得先决条件。时间和课程限制通常会限制课堂复习。为了解决这些问题，我们提出了 SigPrep，这是一组用于信号介绍课程的开源、基于 Web 的预备模块。SigPrep 被设计为课前作业，学生可以按照自己设定的速度独立完成。SigPrep 是在 WebWorK 中设计的，WebWorK 是一个广泛使用的平台，用于解决科学和数学课程的免费开源问题。使用 WebWorK 功能，SigPrep 为学生提供即时反馈和相关外部电子学习资源的链接，作为他们未能表现出足够熟练程度的概念的复习。教师也可以跟踪学生？进步和表现。我们概述了 SigPrep 的教学设计，它提供了涵盖信号类先决条件的特定相关性和适用性问题。最后，我们分享了使用 SigPrep 作为我们信号介绍课程教学的一部分的经验中的结果和反馈。