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An inclined plane is a
sloped surface like this
illustration. Wedges are
made up of inclined
planes that make our
work much easier.
The sun was out. The classroom was
getting warmer and warmer. Wonder
Wedge looked around and saw his
friends sweltering.
One at a time the
kids got up and tried
to open the door.
But, each time the
door slammed shut.
How could they keep the
door open?
Wonder Wedge came to the
rescue! He showed the kids
two pieces of wood. Which
one would work best to
keep the door open?
"The wedge is best!"
says Wonder Wedge.
A wedge is made out of
one or more inclined
planes. It helps us do
many different things.
Draw a line to match
the tools that work
together.
How many wedges
can you nd on
this page?
Standards Link: Physical Science: Students understand
simple machines and how they work.
A knife, a nail, a doorstop, a
pushpin and even a screw are
types of wedges. They help us
do many different things. Look
at these pictures and circle all of
the wedges the children are
using.
Standards Link: Physical Science:
Students recognize simple
machines and how they work.
Standards Link: Reading
Comprehension: Follow
simple written directions.
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