Connect students directly to the concept in a personal way. Capture students' attention by initiating a group problem-solving activity before delivery of instruction. Begin with a situation that is familiar to students and builds on what they already know. Construct a learning experience that allows diverse and personal student responses. Facilitate the work of cooperative teams of students.

Equality experiment with lemonade and food color.

Objective: To introduce the concept of equality.

Activity: Teacher presents an experiment. Students work in four teams. Each team is given a beaker of an unnamed liquid (lemonade). Two of the teams are to add the exact same amount of red and blue food coloring to the beaker. The other two teams are to add the exact same amount of green and yellow food coloring to their beakers. Each beaker must be an exact duplicate of the matching team's beaker. Jars are compared to see if results look exactly the same.

Assessment: Studentsí ability to follow directions and their curiosity at the task.