Pictured here are Grace Christian third grade students who are learning about compare and contrast by using hooks hoops to construct their Venn diagrams. Students getting up out of their chairs and manipulating real-life objects enhances their learning process. This type of lesson especially appeals to the tactile learner. Also, by using more of the senses (sight, sound, and touch), the lesson has a greater chance of being remembered and is easier to recall when the same type of problem is presented in the future.
Venn Diagram (noun)
A diagram representing mathematical or logical sets pictorially as circles or closed curves within an enclosing rectangle (the universal set), common elements of the sets being represented by the areas of overlap among the circles. (Google)