Supply materials and have each child draw a picture of their family or of all the individuals living in their home with them. They may include their mothers, fathers, siblings, aunts, uncles, etc.
Have each child count the number of family members they have drawn. They may write this number down to refer back to.
Have the children gather the connecting cubes needed and connect a cube to the chain for each family member.
Have each child count the cubes out loud to verify that the number of cubes matches the number of family members drawn.