A Web-Based Mathematics Skill Enhancement Program for College and High School Students

数学科学（21）该项目正在实施一个通过万维网提供的系统，以加强学生的代数和计算技能，在一个大型改革微积分和微积分前计划中，其中一个推广部分是帮助高中评估学生是否拥有在大学数学中取得成功所需的特定代数技能，同时有时间在大学之前修复学生的个人弱点。这是通过改编其他地方开发的高质量做法和材料来实现的，在这种情况下，使用内布拉斯加大学开发的eGrade软件包在网上提供和评分数学练习。这个软件最初被称为Webtests，旨在处理大学数学入门课程中的家庭作业和测试。在这个项目中，正在对这一软件进行调整，并与通过互联网提供和收集信息的其他方法结合使用，以便在网上提供以下所有内容：供高中使用的数学技能评估材料;供大学和高中使用的代数复习和练习模块;两门完整的数学课程;以及一个主要的入门技能测试程序。该项目取得了以下成果：（a）在一个计算机化考试中心以电子形式提供入门考试，自动评分，向教员报告分数，并立即向学生反馈。(b)基于网络的复习材料包含电子等级练习问题集，正在编写，以配合网关测试，使学生谁遇到困难，可以审查和实践之间的尝试材料。(c)基于网络的准备测试正在创建，可以在高中数学教师的指导下使用，以诊断大学数学入门课程所需的特定代数技能的弱点。(d)目前正在围绕eGrade开设两门网络课程，一门是为还没有准备好学习微积分的学生开设的代数和三角技巧课程，另一门是为还没有准备好学习微积分的学生开设的简短的微积分课程。(e)在一项试点活动中，正在探索对多变量微积分的扩展，以研究如何将一些现有的微积分III计算机实验室模块转换为通过网络交付。

Mathematical Sciences (21) This project is implementing a system delivered through the World Wide Web for strengthening the algebraic and computational skills of students in a large reformed calculus and precalculus program, with an outreach component to help high schools evaluate whether students have the specific algebraic skills needed to succeed in college mathematics while there is time to repair students' individual weaknesses before college. This is being done by adapting high quality practices and materials developed elsewhere, in this case the web-based delivery and grading of mathematics exercises using the eGrade software package developed at the University of Nebraska. This software, originally called Webtests, was designed to handle homework and tests in introductory college mathematics courses. In this project this software is being adapted and used in conjunction with other methods of providing and collecting information through the Internet to deliver all of the following across the web: mathematics skill evaluation materials for use in high schools; algebra review and practice modules for use in college and high school; two complete mathematics courses; and a major gateway skill testing program. The project has the following outcomes:(a) Gateway tests are being offered in a computerized testing center in electronic form, with automatic grading and reporting of scores to instructors and immediate feedback to students. (b) Web-based review materials containing eGrade practice problem sets are being written to accompany the gateway tests, so that students who encounter difficulties can review and practice the material between attempts.(c) Web-based readiness tests are being created that can be used under the guidance of high school mathematics teachers to diagnose weaknesses in the specific algebraic skills needed for introductory college mathematics courses. (d) Two web-based courses are being built around eGrade, an algebra and trigonometry skill course for students not quite ready to take precalculus and a brief precalculus course for students not quite ready to take calculus. (e) Extensions to multivariable calculus are being explored in a pilot activity to study ways to convert some existing Calculus III computer laboratory modules for delivery across the web.