Logarithm Calculator

Accessibility for educational games is a work in progress across the industry. We continually seek solutions to make our products fully accessible and we strive to adhere to established standards for accessibility and usability on each new project. Some of our older products may not be accessible in all areas, and have not been optimized for current accessibility recommendations. Here, we offer the content and approach of this game, so that learners are better able to find alternative content and ways of learning.

Content of the module

The Logarithm Calculator is an interactive, web-based module designed to help students strengthen their understanding of how to use the log function on a graphing calculator. This module functions as a study tool with a variety of practice exercises aimed at helping students to recognize the difference between linear and logarithmic scales. In addition, demonstrations of logarithmic scales and step-by-step examples of solving logarithmic expressions are included.


Users explore linear and logarithmic scales via mouse or trackpad. This module does not require a high level of precision, so it may be suitable for users with fine motor issues or eye–hand coordination difficulties. The module requires mostly mouse or trackpad clicking with few instances of dragging. For example, the user will drag a tick mark on a linear scale.


This module is also accessible for students who are hearing impaired, as the module’s text box (closed caption) feature allows students to complete the module without sound. However, users with HD audio sound cards may have difficulty receiving audio from the module. This module is also suitable for students who are red/green colorblind, as none of the key components are identified by red or green colors. This game is only playable on platforms that support Adobe Flash, which may no longer be supported by browsers beginning in 2020. It is not supported by mobile devices. Logarithm Calculator is only accessible in English.