Make a Razor Blade Climb
You will need: Magnet, razor blade, card,
apple, assortment of small
articles.
To test the powers of a magnet, spread an assortment of
small articles on the table. Include an apple.
First try
out the magnet on the apple. You will quickly discover that it will not attract
fruit. Nor will it attract wood, glass, chalk, cardboard, cloth, or rubber.
You
will soon discover, however, that things made from iron and steel, such as a
key, razor blade and nail are not only attracted to the magnet, but also
attract each other while under the magnet's influence.
Now
take a sheet of thin card and using the magnet as in the photo, make a razor
blade climb up the piece of card while it is sloping steeply.
Push
a nail into the top of the apple so that it looks like a metal stalk. Now the
magnet will be able to lift the apple from the table.
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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