1. Scraping or rubbing away the foreign substance:
What would you use to remove the butter from the
plate? A piece of paper towel or a dish brush.
What are you doing
with the dish brush or paper towel? Scraping or rubbing off the
Then how was it removed? It was
removed by scraping or rubbing.
Suppose some one has sharpened a pencil and let the
pieces fall on the floor, what would you take to remove
the foreign substance from the floor? A broom.
would you say you are doing with the broom? Sweeping.
How does the movement of the broom over the floor compare
with the movement of the dish brush over the plate? It
What would you take to remove the dust from
the window-sill? A duster.
What would you say you are
How does the movement of the duster
compare with the movement of the dish brush and the broom?
It is similar.
In all of these cases of dish, floor, and sill,
how did we remove the foreign substance? We scraped or
rubbed it off.
Name one way of removing a foreign substance.
Scraping or rubbing it away.
2. Dissolving the foreign substance and then scraping it
Show a much soiled dish towel and ask what is usually done
to clean it. It is washed.
Ask your kids to tell just
what they mean by that. The towel is put in water
and soap used on it.
What effect will the soap and water
have on the foreign substance? They will soften or dissolve
Then what must be done next? The towel must
be washed in washing machine or washed with the hands.
What effect has
this operation on the foreign substance? It scrapes or
rubs the foreign substance away.
Then we have another
way of cleaning: By first dissolving the foreign substance,
and then scraping or rubbing it away.
A number of well-known cleaning operations may then
be given, and the kids should be asked in each case to decide the
method used—such as, scrubbing a table,
cleaning the teeth, or washing dishes.
NOTE: Kids should
fully participate in cleaning according to their ability. Don't forget
to give them some harder tasks and encourage initiative. Show them that
everyone learns from one
another and everyone contributes.
Many important studies into human brain development is proving that parents truly are their children’s first teachers. Given what we know today about brain development, it is clear that parents
should not leave to schools alone the important tasks of child's learning and development.