With this foldable the students are to come up with what they think the definition is before they are given the exact definition.
On the outside flap is the term. When flipped open on the flap is the space for the students' definition and the place for the exact definition.
My document includes terms for Geometry, but it can be edited. There are also 2 completely term free pages at the end. Just print your document double sided and to flip on the short edge.