The children find out by trying. The course also teaches the children about spirals. They make cinnamon rolls and do a spiral folk dance. It is a mini chemistry unit in which the children combine different common household products and observe what happens. With the substance oozing in their hands they decide.
Students begin by exploring the habitat of worms and observing their behavior.
Later, they can feed their own lunch-time scraps to the worms in a special worm bin and observe the garbage be recycled by the worms into rich garden compost. Buttons are distributed to children and they are asked to organize them however they wish. Some sort by color, some by size, some by the number of holes, some by shape. They learn the principals of organization and categorization by observing and making comparisons. Other activities with collections are included in this unit.