Findings from each group are recorded and displayed for students to view for later use. Discuss what happens if a part of the flashlight system is removed. Formative Assessment Ask students to define a system using the flashlight as an example. For students who have difficulty with the concept of a system and its parts use a puzzle approach. Students demonstrate to the teacher how the removal of one piece will affect the puzzle.
Students identify the parts of the puzzle and explain why the puzzle is a system.
Description Students examine and compare small and medium sized flashlights. Fourth graders study the flashlights . As a result of this investigation students should realize that two dry cells are parts of a flashlight system. If the battery appears to be damaged, do not touch, notify teacher immediately. Formative Assessment 2.