Formative assessment probes are effective tools for uncovering students' ideas about the various concepts they encounter when learning science. They are used to build a bridge from where the student is in his or her thinking to where he or she needs to be in order to construct and understand the scientific explanation for observed phenomena.…

Students in Mrs. Cornell's kindergarten class shared their observations about what happened when drops of water were placed on different types of wood. The students were engaging in a science lesson focusing on the observable properties of wood, an activity from the FOSS Wood and Paper science module. This lesson is one of many that Mrs. Cornell…