Mirror looking: Use a full-length mirror. Using cardstock, or similar weight paper, cut out full-size body parts (of both a boy and a girl). Cut out legs, arms, head, trunk, feet, neck, and hands (i.e., adjust the number of body parts cut out to the ability-level of your children). Have the children work in pairs; one child stands in front of the mirror, the other child puts the parts together copying the reflection in the mirror. Have them reverse roles. Laminate the body parts, write the name on each part and the children use Sticky Tack to adhere the pieces to the mirror.
