(62 Kb)	Bob2 takes the students outside to test their observation skills.
(46 Kb)	Giang Makes sure that his work matches the teachers.
(61 Kb)	Students listen as Bob2 asks the class a few questions.
(51 Kb)	Two students watch as Christian does on her computer what she wants then to do on their computer.
(73 Kb)	The student begin to make educated guesses about what they see Bob2 doing.
(61 Kb)	Bob2 makes sure that he hears the classes observations correctly.
(51 Kb)	Some presentations that scientists make need to have audience participation. Bob2 has a participant.
(49 Kb)	Students work very hard on the assignment that Christina gives them.