A Hair-Raising Experiment
You will need: One balloon.
Have you ever realized how
easy it is to turn a balloon into a magnet? The secret lies in the static
electricity which can be generated by briskly rubbing the inflated balloon on
some fur or woolen cloth. You can use your sweater to produce a very effective
charge of static electricity in the balloon.
The second illustration
shows how the balloon attracts hair. And strangely enough, although the young
lady said that she could feel nothing when her hair was attracted toward the
balloon, both a pet cat and dog showed distinct signs of uneasiness when the
balloon was held close to their coats.
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.
Children are
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!
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