NC.K.MD.2

In this standard, students will make direct comparisons of attributes that can be measured, such as length, weight, and size. Direct comparisons are made when objects are put next to each other (e.g., the height of two children, the length or width of two books, the length of two pencils). Students must be able to move the objects next to each other to compare their lengths or hold them to compare weights. As kindergarten students continually compare objects by length, they discover the importance of lining up the ends of objects in order to have an accurate measurement. For example: A student lines up two blocks and says, “The black block is a lot longer than the white one.” A student picks up two books and says, “The red book is heavier than the blue book,” or “The red book is bigger than the blue book.”