Sometimes “things” work better than paper and pencil. This statement applies to the frequently used venn-diagram model for comparison. Robert Marzano says exercises involving similarities and differences yields a .45 increase in student achievement. You bet venn-diagrams are an essential exercise in my teaching repertoire.
These hoops bring venn-diagrams to life when comparing and contrasting as a whole class, at stations, or in small group instruction. The magnetic version is great for the white board and the traditional version works well on the floor. I throw up my hoops and use them with premade sorting cards or have the students write directly on the board.
Hoola hoops can are a great alternative for a larger than life version or more affordable alternative.