Peer Review

This site provides clear step-by-step solutions for evaluating limits.  Users can choose from a drop-down list of pre-entered functions or may enter the function of their choice.  Users can also choose to evaluate one-sided and two-sided limits. Users can also read the available brief explanation with some examples. This site offers users with options of downloading this site’s app on their smart devices from Apple Store or Google Play.

While the step-by-step solutions are easy to follow, the notation used in some solutions could be confusing to students who are required to show work for course assignments.  Many students struggle with the idea that two functions are not equal at x=c even though both functions may be approaching the same value as x approaches c.

Users can reference this site for a refresher in evaluating limits or to check solutions on homework or in-class activities.  It could be very helpful to students who are struggling with evaluating limits algebraically.

The statement at the bottom of the page, “Using limit evaluator is the best way to solve limits…” is problematic.  It may suggest to some students that it is not important to be able to evaluate limits manually.

Entering in the function and limit information is quite easy.    The step-by-step solutions look very nice.

The site contains multiple advertisements, including one which appears right above the “calculate” button.  If a user is not paying attention, they may be likely to click on the advertisement rather than the “calculate” button. Therefore, these advertisements can cause a confuse to many users. To view solutions, users must click on “show steps” and then click on the arrow next to “step-by-step solution” to see all steps.  This could be improved by displaying all solutions after the first click.