3-part cards (also known as nomenclature cards) are a Montessori tool that helps children expand their language abilities and their understanding of the world. This task is performed by placing the combined picture and word cards (also called the "control card") in front of the child in a row or column, saying the name of each as they are placed. Next, the child is given one "picture card" at a time to match to the corresponding "control card". Finally, the child is given one "word card" at a ti