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

数学科学(21)这个项目正在实施一个通过万维网提供的系统，以加强学生在大型微积分和微积分预科课程中的代数和计算技能，并有一个扩展部分，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，同时还有时间在大学之前弥补学生的个人弱点。为此，正在采用在其他地方开发的高质量做法和材料，在这种情况下，使用内布拉斯加州大学开发的eGRADE软件包进行网上授课和数学习题评分。这款软件最初被称为Webtest，设计用于处理大学数学入门课程中的家庭作业和考试。在这个项目中，这个软件正在被改编，并与其他通过互联网提供和收集信息的方法一起使用，以在网上提供以下所有内容：高中使用的数学技能评估材料；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；以及一个主要的门户技能测试计划。该项目取得了以下成果：(A)在计算机化的考试中心以电子形式提供入门考试，自动评分，并向教师报告成绩，并立即向学生反馈。(B)正在编写载有e年级练习问题集的网上复习材料，以便遇到困难的学生可以在两次尝试之间复习和练习这些材料。(C)正在制作网上准备测试，可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具体代数技能方面的弱点。(D)正在围绕e年级开设两个网上课程，一个是为尚未准备好学习微积分预科的学生开设的代数和三角技巧课程，另一个是为尚未准备好学习微积分的学生开设的一个简短的微积分预科课程。(E)正在开展一项试点活动，研究如何转换一些现有的微积分三计算机实验室模块，以便在网上提供，目前正在探索对多变量微积分进行扩展。

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.