How do you start in fourth grade to introduce force and motion? Here in Virginia they have been exposed to this concept in k-1 learning about pushes and pulls related to toys, then in 2 expanding to pushes/pulls as related to magnets, and then in 3rd grade related to simple machines. Where do we go from there?
Here are our State Required Standards:
So...how do I break it down..so that it is interesting and meaningful to my students?
What do we need for part one? Roller coaster tubes - I got this idea from More Picture Perfect Science Lessons. They have a great lesson in there that I use as the "hook" for my unit.
Go to the local Lowes or Home Depot and buy some hose insulation tubing. They are super cheap...I think I spent $10 total and had enough for the class.
They look like this:
Then you will cut them in half - so that they are the same length but have an opening on top.
The only other materials you will need are marbles, cups, tape and maybe some toilet paper tubes for tunnels. More information to come...
Here are our State Required Standards:
SOL Standard 4.2
The student will
investigate and understand characteristics and interaction of moving objects.
Key concepts include
a) motion
is described by an object’s direction and speed;
b) forces
cause changes in motion;
c) friction
is a force that opposes motion; and
d)
moving objects have kinetic energy.
Part One: Force/Motion with
Roller coasters:
·
describe
the position of an object (by
location to another object or background)
·
collect
and display data in a table and line graph to show time and position data for a
moving object
·
explain
that speed is a measure of motion
·
interpret
data to determine if the speed of an object is increasing, decreasing, or
remaining the same
·
identify
the forces that cause an object’s
motion
·
describe
the direction of an object’s motion: up,
down, forward, backward
·
infer that
objects have kinetic energy
Part Two: Mass and Friction with
Cars
·
design an investigation to test: “If
the mass of an object increases, then the force needed to move it will
increase.”
·
design an investigation to determine the
effect of friction on moving
objects: write a hypothesis, identify
dependent variable; independent variable, and constants. Conduct a fair test, collect and record the
data, analyze the data and report the results of the data
Go to the local Lowes or Home Depot and buy some hose insulation tubing. They are super cheap...I think I spent $10 total and had enough for the class.
They look like this:
Then you will cut them in half - so that they are the same length but have an opening on top.










