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Lesson�2:�The�Well
Design Task
Working in Groups of 2-3
 • Askthechildrentocreateamechanismforraisingand
lowering the spider for the nursery rhyme, Little Miss
Muffet. The spider should be able to move slowly up
and down.
 • Discuss:
   •Whatmaterialsthechildrenmayneedtouse.
   •Howthemechanismwillwork.
   •Howtheywilladdthecharactersfromthestory
to make it look more realistic.
   •Thetaskspeoplewillcarryouttocreatethe
characters and mechanism.
 • Theyshouldbeencouragedtomakealabelleddrawing
of their design and write a description of how their
design works before starting construction.
Plenary
Select some models to share with the class and ask the
children to describe:
 • Thereasonsbehindtheirdesign.“Wedidthis
because…”
 • Whytheirdesignworkswell.
 • Whatpartsoftheirdesigntheyarepleasedwith.
 • Whatteststheycarriedouttoevaluatetheirdesign
against the design brief.
Teacher’s Notes
When making a powered vehicle, as
in Design and Technology Units 6C:
Fairground and 6D: Controllable
Vehicles or in any model they may
make that is driven by an electric
motor, children often try to connect
a motor with a small axle to a large
wheel and are surprised when their
model does not run when placed on
a surface. The small amount of friction
between the wheels and the surface
is enough to prevent the vehicle mov-
ing. The electric motor cannot generate
enough turning forces to turn the
large wheel.
Teacher’s Notes
To promote the wider use and
application of ICT skills and practices,
the children’s models and work could
be recorded using a digital camera.
Education
®
17


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