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.

Rank order exercise by birthdays.

Objective: To create matching based on a rule.

Activity: Teacher lines up the students in rank order by birthdate. First student closest to January 1, etc. The students do not know the rankings or why. Teacher assigns the number 1 to the student whose birthday is closest to January 1 and so on. The class is asked to figure out what system the teacher used to give each of them a number. Note: If two or more students have the same birthdate, they must share the same ranking number. After the students have figured out the why of the rankings, explain the pattern used. Ask how it is different from the ranking according to their lottery numbers. If it's possible for one birthdate to be assigned more than one ranking number? End by identifying the concepts they have experienced by their mathematical names: topics, domain, range, rule of correspondence, unique pairing or matching.

Assessment: Quality of discussion and understanding of the concepts.