This is a worksheet that I created to have students find the pictures that are alike and the ones that are not alike. It could be used in conjunction with a hands on activity, as a small form of an assessment to gauge student's level of understanding. Students would be given a variety of items such as; foam stickers, blocks, buttons, etc. They would be instructed to sort the items into groups that are alike and groups that are different. After sorting they would explain why they put them into the groups and give the various characteristics that they used to sort.