Fold a standard 8 1/2" x 11" sheet of construction paper in half. Blue paper works best because it looks like a jeans pocket.
On another sheet of blue construction paper, help your child to measure a 4" x 5" rectangle. Cut out the rectangle. Have your child draw a pocket design on one side of the rectangle.
On the other side of rectangle, carefully squeeze a line of glue along three edges. (Note that the glue should go on both 4" sides and one 5" side.) Glue the rectangle onto the card with the open side up so that it makes a pocket.