This article will discuss two teacher training functions: One function is to give the teacher candidates practice in evaluating currently available mathematics websites used in grades K-8 for mathematics instruction. The second function is the evaluation of data by teaching candidates of 13 commonly used math sites by middle and elementary teachers. Research and data collection are combined with the authentic activity of evaluating mathematics websites using critical review and evaluation tools. The usage of technology to assist in the education process was been increasing with the advent of more complicated technologies and relevant software (e.g., mathematics based websites). Creating new ideas on how to potentially aid learning is important, but so is the evaluation of such sites and programs in order to determine that they (e.g., mathematics based websites) are pragmatic, user-friendly, and able to make a positive impact.