Bedienungsanleitung Knex 78620 - Education Intro to Wheels and Axles and Inclined Planes Teachers Guide (Seite 11 von 49) (Englisch)

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Lesson�2:�The�Well

Time: 2.5

hours

The lesson could be divided into two separate activities:

Part 1: Investigating how a lifting mechanism works (1 hour).

Part 2: Investigating the forces used in lifting – more suitable

for Year 5 and 6 pupils (1.5 hours).

Learning Objectives - Children should learn:

 •toinvestigateanddisassembleproductsinordertolearn

how they work

 •aboutsimplemachinesthatmakeiteasiertodothings

 •torelatesciencetothewaysfamiliarmachineswork

 •tocommunicateinformationaboutproductsand

mechanisms through labelled drawings

Vocabulary

wheel, axle, winder, handle, raise,

lower, up, down, turn, rotate, winding,

mechanism, lever, faster, slower,

compare, because, long, short, lon-

gest, shortest

Resources

Each group of 2-3 children

will need:

• 1 K’NEX Understanding

Mechanisms: Wheels and Axles

and Inclined Planes kit and Building

Instructions booklet

• Felt-tipped pen

• Paper cup

• 200 gram masses

• Broom handle/30mm dowelling

You will need:

•AcompletedK’NEXwellmodel

•Picturesandexamplesofdifferent

kinds of wheels and axles such as

a cotton reel with a pencil inserted

into its centre hole; a door knob;

a screwdriver

Teacher’s Notes

You may find it useful to create a

word board with the words and

technical vocabulary written on cards,

possibly with a simple description

on the reverse side to act as an ‘aide

memoire’ for the children.

Axle

Wheel

Part 1: Investigating How a Lifting Mechanism Works

Possible Teaching and Learning Activities

Introduction

This lesson may be used to support the QCA/DfES scheme

of work Exemplar Materials for:

Design and Technology Unit

• 2C: Winding Up

Science Units

• 1E: Pushes and Pulls

• 2C: Forces and Movement

Some children’s stories and nursery rhymes, such as

“Ding Dong Bell” and “Jack and Jill”, provide familiar

contexts within which to introduce the lesson, especially

for younger children.

Whole Class

 •UseaK’NEXWellmodeltodemonstrateanddiscuss

how the model’s mechanism works. This activity offers

you the opportunity to introduce the vocabulary the

children should use later when describing their own

observations. Alternatively, ask the children to describe

the mechanism and then formalize or clarify their

operational definitions. Vocabulary words: axle, wheel,

handle or winder.

 •Drawalabelleddiagramonthechalkboardtoidentify

the parts of a wheel and axle. (See diagram below.)

Education

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