Docstoc

Circuits_ Conductors and Torches

Document Sample
Circuits_ Conductors and Torches Powered By Docstoc
					                       Circuits and Fairgrounds

The aim of this unit is to embed the scientific principles behind motor circuits
in the Design and Technology project to design a fairground ride.

The science investigations involving circuit building and factors affecting the
performance of motors are used in the context of the D&T project.

The activities and objectives are taken from the QCA units of work in Science
(6G Changing circuits) and in D&T (6C Fairgrounds).

There are 6 sessions in total each lasting 1- 6 hrs leading to a total time
requirement of 13 hours.

The short-term plans can be photocopied for each teacher and any additional
information with regard to support and extension work should be added on an
individual class basis. Evaluations with regard to the plan can be added once
the session has been delivered and can then be used to inform future
planning.

Included in this pack are:

Copies of the original QCA Unit documents for 6G Science and 6C D&T
Resource requirements for the unit
Preparation needed
DATA Helpsheet – within lesson plans
Datafiles – see separate folder
Detailed short term plans
Worksheets – within lesson plans
Health and Safety recommendations
Teacher expectations information
Pupil target and evaluation sheet
Short term plans
Sessions


       1              IDEAs – motors, belts and pulleys (1 hr)

       2              FPT – Investigating belts and pulleys (1 hr)

       3              FPT – Using and controlling motors (2 hrs)

       4              Investigation – Changing wires in a circuit (2hrs)

       5              DMA – making a model fairground ride (6 hrs)

       6              Evaluation (1 hr)



Resources

Video of fairground ride

PowerPoint presentation of fairground rides

Computer and data projector if available (to show presentation)

Collection of controllable toys, toys with motors, and eg cassette player,
sewing machine, roller blind

Lego or other construction kit with drive belts and pulleys

3V electric motors – for use with appropriate batteries
or
6V electric motors for use with control interface boxes

Batteries, leads and switches

Computer and control interface boxes with appropriate software – if available

Range of fuse wires

Construction kit models of fairground rides

Various materials for constructing model fairground rides – paper plates, card,
pipe cleaners, cardboard tubes etc

Pulley wheels, elastic bands, peg board, motor mounts, blocks of wood for
ride base
Battery holders for cylindrical batteries

Crocodile connectors

Wire


Adhesive, scissors, stapler

Wire stripper, small electrical screwdriver


Health and Safety


Warn children of the dangers of mains electricity. Emphasise that the work
they do in class is safe because they use batteries which are much less
harmful

Mains appliances, including those brought in from home, should only be used
if they have been subject to an electrical supply check.

When carrying out a risk assessment, teachers should consider the materials,
tools and equipment that the children will be using.

In addition the following points should be noted:

      It is inadvisable to use rechargeable batteries for home-made circuits
       because in the event of a short circuit they may become very hot and
       cause injury
      Care should be taken if disassembling torches as they may have sharp
       edges

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:15
posted:2/11/2010
language:English
pages:3