Provide a metaview, lifting students into a wider view of the concept. Use another medium (not reading or writing) to connect students' personal knowing to the concept (i.e. visual arts, music, movement, metaphor, etc.) Involve learners in reflective production that blends the emotional and the cognitive.
Each student creates a quadrilateral shape using strips and fastening them.
Objective: Students will be able to tell what it means for two quadrilaterals to be congruent.
Activity: Each student creates a quadrilateral shape using strips and fastening them together. Ask the students to change the shape of the quadrilateral without changing the length of the sides. Ask how this is possible. (Fix one angle.) Ask what they can conclude about two congruent quadrilaterals. (They must have five pairs of congruent parts.)
