You will need: A watch.
ever seen Western pictures where the Indian places his ear to the ground to
listen for galloping horses?
We can prove that it is possible to hear
galloping or any sound at a much greater distance in this way.
Sounds are carried more clearly through the
earth than through the air.
Place a watch on top of the
table at sufficient distance so that you can just hear it ticking. Cup your
hand around your ear and notice how it helps to magnify the sound slightly.
Now place your ear on the
table top. Notice how much more clearly you can hear the watch ticking? This is
because the sound waves travel more easily through the wood than through the
Children learn best through doing
Before children can
understand a thing, they need experience: seeing, touching, hearing, tasting,
smelling; choosing, arranging, putting things together, taking things apart.
Experimenting with real things.
Old-time school teaching
used only words and the teachers thought children knew something if they could
repeat it. Now we know better. To reach practical understanding we do not need
to use many words with young children.
clever. They learn a lot, without being taught. The greatest skill - to be able
to talk, to communicate is learnt outside school. In the classroom it's the
children who need to talk the most. Unfortunately it is the teacher who does
most of the talking!