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I cam, I saw, I conquered. With Steven Meredith and Gareth Jones
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Key stage 2 Through a variety of creative and practical activities, pupils should be taught the knowledge, understanding and skills needed to engage in the process of designing and making. They should work in a range of relevant contexts [for example, the home, school, leisure, culture, enterprise, industry and the wider environment] National curriculum KS2 Design and Technology
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National curriculum KS2 D+T Technical knowledge Apply their understanding of how to strengthen, stiffen and reinforce more complex structures Understand and use mechanical systems in their products [for example, gears, pulleys, cams, levers and linkages] Understand and use electrical systems in their products for example, series circuits incorporating switches, bulbs, buzzers and motors Apply their understanding of computing to program, monitor and control their products.
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Types of motion LinearMoves in one direction without deviation ReciprocatingMoves backwards and forwards on one plane, such as a piston OscillatingMoving from side to side like a pendulum in a grandfather clock RotaryMoving in a circular motion
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What is a cam mechanism A cam is a mechanism that converts rotary motion into reciprocating motion. The cam mechanism has two parts, the cam itself and the follower.
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Types of Cam PEAR CAM A pear shaped cam were for part of the rotation the follower is still, then it gently rises and falls SNAIL CAM The follower gently rises then drops suddenly OFFSET or ECCENTRIC CAM A circular cam that rotates about an off- centre point
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Phases of cam movement DWELL When the cam rotates but the follower does not rise or fall. THE RISE The part of the cam that causes the follower to rise. THE FALL The part of the cam that causes the follower to fall. ONE CYCLE One rotation/revolution of the cam.
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Design Use research and develop design criteria to inform the design of innovative, functional, appealing products that are fit for purpose, aimed at particular individuals or groups Generate, develop, model and communicate their ideas through discussion, annotated sketches, cross-sectional and exploded diagrams, prototypes, pattern pieces and computer-aided design Evaluate Investigate and analyse a range of existing products National curriculum KS2 D+T
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A traditional toy that has moving parts What is an Automata used for? What is an Automata? To entertain children and give the illusion of life
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AUTOMATA TARGET MARKET MATERIALS SAFETY ISSUES THEME FUNCTION [ WHAT IT’S SUPPOSED TO DO] PINE DOWEL HARDBOARD SCREWS PVA GLUE APPEARANCE Task Analysis
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Examples
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https://www.youtube.com/watch?v=h5E WrFqXJYM https://www.youtube.com/watch?v=h5E WrFqXJYM
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Annotate the designs to say- What you like/dislike, why? How it will move Why it’s suitable for the target audience Any improvements to be made, why? How the background links with the moving piece Design Ideas Split your page into quarters and design 2 Followers and 2 backgrounds to match like the example.
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Annotate to describe:- Movement of design Elements of design Likes, dislikes Any improvements or changes you might make to the design.
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National curriculum KS2 D+T Make Select from and use a wider range of tools and equipment to perform practical tasks for example, cutting, shaping, joining and finishing accurately Select from and use a wider range of materials and components, including construction materials, textiles and ingredients, according to their functional properties and aesthetic qualities
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Construction Equipment Bench hook Junior hack saw Drill (hand or power) 6mm drill bit Sand paper PVA/Glue gun Pencil Ruler Materials Pine block top 150x119x18mm 2 hard board sides 150x119x3mm Dowel 20cm,10cm and 5cm 3 cams (2 circle cams and a cam of your choice) Follower foot
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Marking out Hardboard side 150mm x 119mm (x2) Pine top 150mm x 119mm
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National curriculum KS2 D+T Evaluate Investigate and analyse a range of existing products Evaluate their ideas and products against their own design criteria and consider the views of others to improve their work Understand how key events and individuals in design and technology have helped shape the world
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Evaluation of process and outcome Using bullet points for each step, list the skills you used and the equipment you have used to make your automata What you would change if you were to design your automata again and why? What was hardest part of the project and why? What was your favourite part of the project?
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