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Lesson�2.1�and�2.2:�The�Seesaw
1st Class Lever
Time for each lesson: 1.5
hours
Note: Lesson 2.1 is appropriate for Key Stage 1 and as an
introductory activity for Key Stage 2 children. Lesson 2.2 is
more appropriate for Key Stage 2.
LearningObjectives - Children should learn:
•pushesandpullsareexamplesofforces
•toobserveanddescribemovementsinasimplemachine
•torelatesciencetothewaysfamiliarmachineswork
•tocarryoutasimpleinvestigation
Vocabulary
1st Class lever, load, effort,
fulcrum, pivot, centre, off centre,
beam, rigid, up, down, raise, lower,
lift, opposite, direction, turns, rotates,
push, pull, force, weight, force meter,
simple machine
Resources
Each group of 2-3 children
will need:
1 K’NEX Understanding
Mechanisms: Levers and Pulleys kit
and Building Instructions booklet
Dot stickers or pieces of masking
tape
Felt-tipped pens
2 paper cups or 2 pieces of foil
Coins, paperclips or weights to use
in the cups
5 Newton force meter or weights
A collection of devices that use the
lever principle
Useful Internet Web Sites:
Please refer to Page 10 of A Quick
Guide to Levers.
Lesson 2.1 for Key Stage 1
Possible Teaching and Learning Activities
Introduction
The activities outlined in this lesson may be used to support
the QCA/ DfEE Exemplar Scheme of Work for:
Design and Technology Unit
•1A:Playgrounds
•1D:MovingPictures
•3C:MovingMonsters
•4B:Storybooks
•5C:MovingToys
•6C:Fairground
Science Units
•1E:PushesandPulls
•2C:ForcesandMovement
•6E:BalancedandUnbalancedForces
Teacher’s Notes
Key Stage 1 and 2 Activities
The suggested activities are suitable
for Key Stage 1 children and provide
opportunities for children to investigate
and use words and phrases related to
forces and movement. For example:
push, pull, turn, direction, distance,
force, up, down, opposite. Activities
for older Key Stage 1 and Key Stage 2
children are provided on Page 17.
Lesson 2: The Seesaw
13
Education
®
levers and pulleys
website: www.knexeducation.co.uk
14


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