PK1 This popular set introduces the vocabulary that describes leaf features. Control cards (10" x 5") define 9 characteristics of leaves within three categories: Leaf Types, Leaf Veins, Leaf Margins. Using one of our 40 leaf illustration cards (3" x 4") of 20 tree and 20 garden and house plants, the child observes a leaf and selects three cards to describe that leaf. Real leaves may be used in place of the leaf illustrations cards. Background information is included for the teacher.