Establish a classroom atmosphere that celebrates the sharing of learning. Have opportunity for students to practice new learnings. Make student learning available to the larger community, i.e. books students write are shared with other classes, students report in school paper, student work is displayed at school, etc.

Exchange "junk" boxes and sort another way --no duplication.

Objective: To "re" group "junk" from another group--choose alternative similarity.

Activity: Have groups exchange "junk" boxes, and have them now classify items using another common characteristic. This cannot duplicate previous group's characteristic.

Assessment: Students' ability to find alternative similarities in order to further classify items presented to them.