This site contains reference material and sample problems in Calculus. Topics covered include sequences, series, limits, continuity, differentiation, integration, and Fourier series. Many problems have answers and detailed solutions. S.O.S. Mathematics/Calculus is a part of an independent, commercial site that offers straightforward technical assistance primarily to high school and college students.
To serve as a supplement for a standard course in calculus and provide some additional instruction.
Target Student Population:
Prerequisite Knowledge or Skills:
Type of Material:
Reference and tutorial.
This site can be used as a supplement to a standard Calculus course or as an online referrence guide.
It requires a "Java-enabled" browser.
Evaluation and Observation
The site focuses on traditional Calculus content covering most topics in a typical Calculus I, II, and III course sequence. It is devoted to general explanations and examples as well as exercises with solutions. A major strength of this sites content lies in its many sample problems and examples. These examples are actually practice exercises that students can attempt on their own before clicking on a button that takes them to a detailed solution.
A sequence of topics makes it easy to use this interactive textbook in a linear, not hyper-referenced way.
Some pages do not load completely thus creating omissions. Here are two:
Also, in the section on Indeterminate Forms, more care should be taken when doing arithmetic with the infinity symbol Students will come to think infinity is a number.
Potential Effectiveness as a Teaching Tool
This online text provides major help in learning the concepts of Calculus and, in particular, in solving problems.
The hyper-referenced definitions and theorems are extremely helpful if the site is used as a reference material.
The material is presented in worksheet format and requires students to actively participate in the learning process.
At its current state the site is unlikely to be used as a textbook for a course in Calculus but certainly makes an excellent tutorial supplement. Some sample problems are lacking answers and/or solutions but hopefully this will be completed in the near future.
Ease of Use for Both Students and Faculty
This learning resource is easily navigable. The topics are well-organized and all the key concepts are properly emphasized. Commercial advertising is somewhat distracting in places, but the layout is otherwise clean and simple, with good displays of mathematical formulas that load acceptably fast.