Science/Strand IV/Content
Standard 3/Elementary/Benchmark
2
Instructional
Example
Benchmark Question: What forces are needed to impact the
motion of a moving object?
Focus Question: Why do things move as they do?
Students in small groups
will brainstorm everyday situations (i.e., swinging a baseball bat, pushing
a merrygoround, pedaling a bike) in which forces act upon an object to
change its speed or direction. They will draw diagrams that include labels
and arrows to describe the speed and direction of motion. They will present
their diagrams to the entire class.
Small groups will experiment
with forces needed to push or pull an object. Each group will choose a
vehicle (wagon, car, truck) and design a course that contains a variety of
surfaces (grass, sand, and concrete) and a variety of terrains (hills,
curves, flat surfaces). Students will measure the distance around the course,
the time it takes to complete the course, and record their data in the
table given below:

Distance

Time

Observation

Pull




Push




Push & Pull




Students will navigate the
course three times. First, they will push the object. Second, they will
pull the object. Third, they will use a combination of pushes and pulls.
Students will move the object as far as they can, measure the distance, and
record the measurements in their data table. Students will make written
observations in their science journals of their difficulties navigating the
course.
