The students will be allowed to get up and move around during various parts of the lesson. For example, the making of one large class floor graph will require that the students move around. Students will be encouraged to interact with others during the lesson. The students will be asked to compare two rocks and to find all the various ways in which they are different. The teacher will provide them with a piece of heavy tag board, saying to them that they may need this in their discoveries.
Students are to investigate two rocks.
One rock will be a rock that is capable of producing streaks and the other one is not. After 5-10 minutes of exploration time, the teacher will ask the students to share the ways in which their rocks were different. If a student says that they found a rock that can make marks, then the teacher will follow that up with some more questions. If no one says anything about one of their rocks being able to make marks, then the teacher will ask the students if any of them tested their rocks on the paper. Allow the students to do this.