Montessori Three-Part Cards are materials that children use in order to internalize the information on the cards. Three-Part Cards consist of a card with the picture with word label, a card of the picture, and a card with the word label. 3-6 year old children can match the picture with the picture and the word with the word; the elementary child can match the picture with the word and then use the control cards as a way to self-assess. You do NOT have to be a Montessori teacher to introduce the