Sample Schemes of Work and Lesson Plans
Engineering
OCR Level 3 Principal Learning in Engineering H811
Unit F558: Selection & application of engineering materials
This Support Material booklet is designed to accompany the OCR Engineering Diploma specification for teaching from September 2008.
GCSE [subject] 3 of 7
Contents
Contents 2
Sample Scheme of Work: OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials 3
Sample Lesson Plan: OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials 11
GCSE [subject] 3 of 7
Sample Diploma Scheme of Work
OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials /Suggested teaching time / 4 hours / Topic / Investigate a product /
Topic outline / Suggested teaching and homework activities / Suggested resources / Points to note /
Overview: This unit is assessed internally via a controlled assignment in which the learners must analyse materials for a product and produce a research report. The main feature of this unit is the selection of an engineered product for analysis. The learners should be encouraged and guided to select a suitable product for study, which contains a wide range of materials. Information could be communicated in the form of a presentation to a group of learners; this could be electronically using the current OCR standard.
This unit will enable learners to find out about the structure, properties and classification of engineering materials. Learners will:
· Apply their understanding of the properties of materials, design, cost and availability to correctly specify materials for different engineering applications.
· Develop an understanding of the key features and applications of new, modern and smart materials.
· Investigate what causes materials to deteriorate and how this can be prevented.
· Learn how to use mathematical and scientific principles (Level 3 Unit F563 Mathematical techniques and applications for engineers and Unit F564 Scientific principles and applications for engineers) within engineering metallurgy. A feature of the unit is the analysis of an engineered product, which results in learners identifying materials used in its manufacture and providing evidence of the properties, which led to their selection.
The practical work and the selection of materials for certain applications may contribute to other units such as Unit F557 Applications of computer aided designing and Unit F562 Innovative design and enterprise
There are many opportunities for Learners to develop and demonstrate their PLT’s in this unit.
Learners will be able to:
Select an engineered product made from a wide range of engineering materials. Analyse the product and investigate each material used in its manufacture to establish the identity of the material, its properties, standard forms and the reasons for its selection. Provide evidence for the original forms in which the materials were supplied and the process used to manufacture / 1. Learners to disassemble or be presented with a previously sectioned product
2. Group activity to identify all the materials used in the product and the properties they posses
3. Groups to compare results and check with manufacturers data if available
4. Class discussion on the reasons why each material was selected by the designers and possible alternatives / · Suitable products e.g. battery powered tools, laptops, etc with a range of materials to analyse
· Tools for disassemble
· Manufacturers diagrams and parts list
· Materials selection charts
· Internet access
· Glossary of materials properties e.g. stiffness, hardness, malleability etc / · This topic should take a number of lessons to complete
· It is assumed that learners have acquired some experience of material testing/selection at KS4 and this topic will built on that
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
· Caution, warnings about disassembling mains voltage items should be stressed to the learners if applicable
Learners will:
Develop knowledge and understanding of material selection and the form that they are supplied in / 1. Presenters to continue the theme of the previous topic and stimulate discussion on the standard forms that materials come in
2. Group activity to investigate the form and processes that produced the components in the selected product / · Examples
· Materials selection charts
· Internet access
· Materials and reference sources
· Videos of similar product being made / · This topic should take a number of lessons to complete
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials /
Suggested teaching time / 20 hours / Topic / Test and investigate materials properties /
Topic outline / Suggested teaching and homework activities / Suggested resources / Points to note /
Learners will be able to:
Plan and carry out research into atomic structures, amount of bonding, periodicity and classification of engineering materials. Analyse and evaluate information, judging its relevance and value. Apply knowledge to the consideration of materials for a particular application. Propose practical ways forward for using the knowledge gained
Investigate thermal equilibrium diagrams for common alloys and draw conclusions about properties of materials; test materials using destructive and non-destructive methods, analyse and evaluate information, judging its value in the context of an engineered product. Propose practical ways forward for using the knowledge gained
Investigate the effects of different processing methods by testing and analysing samples, which have been formed and worked, in different ways. Use this knowledge to understand why particular materials have been chosen in the context of a specific engineered product. Propose practical ways forward for using the knowledge gained / 1. Group activity to perform a range of tests on various material types, ideally linked to topic product selected (EL)
2. Learners to record results and compare materials properties/selection in first topic
3. Depending on the testing equipment available learners need to be introduced to other form of material testing that exists
1. Group activity to analyse and evaluate the findings from the tests carried out
2. Groups to research the structure of the materials and document the findings
3. Class discussion on the types of process and treatments that materials may be subjected to
4. Groups to document the changes to materials after treatment/processing / · Ideally a visit to a HE/materials testing establishment, time permitting
· Testing facilities and consumables
· Data recording hardware and software
· Experiment workbook to complete
· Background information on a range of testing methods both destructive and non-destructive
· Examples of metallic and non metallic samples
· Samples materials pre and post processing for comparison
· Internet access
· Materials and reference sources / · This topic will take a number of lessons to complete
· It is assumed that learners have acquired some experience of material testing/selection at KS4 and this topic will built on that
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
· This topic will take a number of lessons to complete
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials /
Suggested teaching time / 3 hours / Topic / Causes of metal failure /
Topic outline / Suggested teaching and homework activities / Suggested resources / Points to note /
Learners will be able to:
Investigate and research safety factors and modes of failure. Identify actual examples of where failure has occurred and the measures engineering designers take to anticipate, minimise and take risks / 1. Presenters to introduce the topic with a recap on destructive testing and materials operating safety factors
2. Groups to research documented case studies of failures, ideally missing out the remedies or prevention taken Groups to come up with solutions that the engineers could have taken to minimise the risk of failure / · Back ground info on product/materials factors of safety
Videos, case studies of failures and remedies covering types of loading, effect of wear and corrosion etc. Examples include:
· Comet airliner crash
· Aloha Airlines Flight 243
· Space Shuttle Challenger Accident 1986
· Hyatt Regency walkway collapse
· Hatfield rail crash
· Internet access / · This topic with take a number of lessons to complete
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials /
Suggested teaching time / 1 hour / Topic / New and smart materials /
Topic outline / Suggested teaching and homework activities / Suggested resources / Points to note /
Learners will be able to:
Investigate a new or smart material. Analyse and evaluate the information and knowledge gained. Act on these experiences when suggesting possible engineering applications for these new materials. Present a persuasive argument to influence others towards the use of new or smart materials / 1. Presenter led introduction of new and smart materials but without applications
2. Group activity to identify applications for the materials given above
3. Learners to produce a short PowerPoint explaining selected material / · Back ground info, for example Piezoelectric, photocromic, electrochromism, shape memory alloys, ferrofluid etc / · This topic with take one lesson to complete
· This topic enables learners to both acquire the required knowledge and understanding and the skills required for the controlled assessment task.
Engineering Diploma 9 of 12
Sample Diploma Lesson Plan
OCR Level 3 Principal Learning in Engineering H811 Unit F558: Selection and application of engineering materials
New or smart materials
OCR recognises that the teaching of this qualification above will vary greatly from school to school and from teacher to teacher. With that in mind this lesson plan is offered, as a possible approach but will be subject to modifications by the individual teacher.
Lesson length is assumed to be one hour.
Learning Objectives for the Lesson
Objective 1 / Learners can explain what a new or smart material isObjective 2 / Learners can list the features of a new or smart material
Objective 3 / Learners can suggest applications for a new or smart material
Recap of Previous Experience and Prior Knowledge
Learners have been introduced to a range of engineering materials and:
· can identify a range of materials in a selected product
· can present an argument on a materials selection
· understands materials structures and behaviours
Content
Time / Content5 minutes / Presenter led introduction of what new or smart materials are with examples to show
10 minutes / Group activity to identify uses for presented materials
15 minutes / Group feedback to whole class of their suggestions of uses for the materials
10 minutes / Presenter to led a consolidation of the suggested uses and if necessary present correct/current uses
10 minutes / Learners to produce a PowerPoint to exemplify their chosen new or smart material
Consolidation
Time / Content10 minutes / Group discussion on what the future may hold for yet undiscovered materials
Homework / Learners to complete their PowerPoint examples
Engineering Diploma 11 of 12