persuasive summary.
Model how to ask questions
of the student presenters.
I see that your data suggest,
xyz, did anyone else find
that?
How did you determine…..
Which text materials did you
use to support your findings?
Evaluate: Review student poster
presentations
procedures, diagrams,
data, and conclusion.
Students question each
other during
presentations
Students explain and
justify their findings with
evidence.
Sound station materials
Tuning forks
Safety caution: tuning
forks should be struck on
the bottoms of shoes or
other hard rubber surface
NOT on the ground or
desk tops; they might
shatter.
Assorted metal bowls,
metal spoons, paint
brush, wooden spoons,
plastic spoons –Students
should strike the bowls
and listen to the sounds.
Toy musical instruments,
xylophone, cymbals,
maracas, etc.
6 long neck glass soda pop
bottles with varied amounts of
water in each (food coloring in
the water may assist in seeing
the levels), metal spoons,
wooden spoons
Safety caution: glass bottles
may break if struck too hard.
Close monitoring will be
necessary.
Meter sticks- hold one end of
the meter stick firmly on the
table and extend the rest of the
stick off of the table. Twang the
end hanging off of the table and
listen. Move the stick while it is
vibrating to change the pitch.
Stethoscopes and prepackaged
alcohol wipes.
Safety caution: students must
wipe the ear buds of the
stethoscopes after each use.
Assorted sizes of rubber
bands, assorted sizes of
containers (metal and
plastic and cardboard).
Sets of disposable ear plugs
Safety caution: ear plugs are to
be used only once and then
Set of hand bells with different
pitches
Plastic bottles each filled with a
different substance such as: sand,
marbles, metal washers, un-popped
popcorn.
Kitchen timers, shoeboxes,
newspaper, zipper bags of water.
Listen to the timer then try it inside
of the shoebox, stuff the box with
newspaper and re try, hold the timer
under a bag of water and retry. The
goal is to discover that sound
travels best through solids, then
liquids, then air
Plastic cups strung together with
lengths of string.
One person holds a cup to their ear,
and the other person holds their cup
Dr. Margilee P. Hilson • The Ohio State University • Autumn Semester 2012
