You need: pencils (a soft pencil like 2B is great), paper, a timer, a round object (an orange or a ball), a desk lamp or flashlight, a family member who can strike action poses, and chenille stems (pipe cleaners) or soft craft wire, plus a small lump of playdough or modelling clay for a base.
Part 1: Value strip with lines. Draw a long rectangle split into five boxes. Leave box 1 empty. Box 2: hatching, far apart. Box 3: hatching, close together. Box 4: cross-hatching. Box 5: three layers of cross-hatching. Now you have a value scale made of lines!
Part 2: Shade a form. Shine the flashlight on the orange from one side. Draw it, using curved hatching on the shadow side.
Part 3: Gesture drawings. Your family member holds action poses: shooting a basketball, shovelling snow, kicking a soccer ball, dancing. Set the timer for 30 seconds per pose. Draw the spine line first! Do at least six.
Part 4: Figure sculpture. Twist chenille stems into a stick figure: a loop for the head, a body, two arms, two legs. Bend it into one of the action poses from your gesture drawings and push its feet into the playdough base. Fold over any sharp ends.
Explain: "My figure looks like it's ___ because the lines of the body ___."