This site contains a large collection of online calculators allowing users to solve various kinds of mathematical and basic statistics problems. A user can solve sums, equations and problems related to Quadratic Equation, Geometry, Trigonometry, Calculus, Improper Fraction, Mixed Number, Addition, Percentage, Cross Product, Area, Volume, Perimeter, Circumference.
To provide users with a set of online calculators for (mostly simple) mathematical calculations.
Target Student Population:
High School, College General Ed, College Lower Division
Prerequisite Knowledge or Skills:
Depends on the chosen tool.
Content Quality
Rating:
Strengths:
This site contains a large collection of online calculators that allow users to perform a (typically) one step mathematical calculation. A difficulty level varies from subtracting two negative numbers to finding the Laplace transform of a continuous function. Some of calculators are powered by Wolfram Alpha engine and produce step-by-step solutions in a separate window.
Every calculator contains a page explaining how to use it and giving proper reference to the mathematical content of the tool.
Concerns:
Some of the calculators are super simple and perhaps should be moved to a different group. Others, like absolute value calculator, produce incorrect answers if the input is a complex number.
While the 5th root calculator includes a disclaimer stating that the calculator “development is in progress and some of the inputs might not work”, there does not seem to be any place to input a value.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
This site would be a good resource to serve as a reference or review for students enrolled in college algebra, precalculus, or calculus. It could also be utilized by students looking for help in a self-guided study.
Concerns:
The collection would benefit if the calculators were grouped by the subject and/or difficulty level.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
This site is very easy to use. The layout is nice and clear.
Concerns:
The advertisement on the page (on the right side) is a bit distracting.
Creative Commons:
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