|
Go over with the class the material that is in the Teacher's Text,
emphasizing the type of glider that Lilienthal first build (the
monoplane). This will be the type that the students will be making (at a
much smaller scale). Also, go over the aerodynamic forces that are at
play when a glider is soaring in the air.
|
|
Talk with the students about safety when using the materials.
|
|
Show the students pictures of a monoplane and ask them to draw one
down to about 12 - 15 inches across. Help the students where needed.
|
|
Ask the students to then draw their design onto the balsa wood.
Tell them to press down hard enough with the pencil so that they can
easily see the outline of the glider on the wood.
|
|
|
|
Then ask the students to proceed with using the steel wool and heavy
duty sandpaper to shape the glider. Tell them to be patient with these
"tools". They will
work on the balsa wood. Have the students wear plastic gloves when they
are using the steel wool.
|
|
An optional step would be for the students to paint their gliders.
|
|
On the following day proceed out of doors to a field where the
students will have enough room to throw their gliders. Have students
take turns so that they can observe their fellow classmate's gliders.
|
|
Return to the classroom and discuss the aerodynamic forces that are
at work when the glider is soaring through the air.
|
|
