Teaching Models

Compare Attributes and Sort Objects

A fundamental process in mathematical thinking is sorting objects in groups that have one or more similar attributes. To sort and classify successfully, children must be aware of attributes such as color, size, shape, texture, and number, and then observe whether a given attribute is present in an object. Once objects are sorted and classified, children should be able to name the criteria used for sorting; they should also be asked to explain their reasoning about why objects belong or do not belong in designated groups. Flexibility in thinking is enhanced if children have experiences with groups of objects that can be sorted in different ways. By having children explain to the class how they made their decision, they may learn other ways to sort the objects as well as realize that there may be more than one correct way to sort.

Teaching Model: Compare Attributes and Sort Objects


Houghton Mifflin Math Grade K