An activity where students in teams observe and classify different types of rocks.

Young scholars learn about data sorting, and by what criteria can one sort things by different algorithms such as selection, insertion and bubble sort.

At this site from The Franklin Institute you can practice classifying objects according to physical structure and characteristics.

At this one page site, you can work through step by step a sample problem that illustrates the problem-solving strategy for "identify a pattern." The answer is right there to help you check your thinking.