This product includes two representations of decimals between 0 and 1. The number is on one set of cards and an area model of the tenths or hundredths. Suggest asking students to order the picture cards, then put them in a pile in order. Then order the number cards (most will do this incorrectly) and then put the picture cards back beside them and see if they match.. then challenge them to reorder the number cards as the pictures are probably correct. See if they notice how the decimals work.. and learn from what they notice.