Session 2 grtp lecture 2 light and colour
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This document provides an overview of concepts and lesson ideas for teaching a unit on light and color. It includes objectives, linked standards, video links and concepts to cover such as light sources, how light travels, reflection, absorption, refraction, shadows, vision, and primary colors. It also discusses organizing science lessons and addressing issues of equality, disability, and religion. Potential student investigations and assignments are outlined.
Session 2 grtp lecture 2 light and colour
- 1. Session 2 GRTP ScienceLight and Colour
- 2. ObjectivesTo become familiar with the curriculum for light and colourTo consider ways of approaching this topic in the classroomTo understand the issues involved with organizing science lessonsTo identify issues about equality, disability and religionLinked Standards: Q10, Q14, Q15, Q18, Q19, Q25a, Q30, Q31
- 3. Video linksLight show-clip introduces topic http://www.teachers.tv/videos/light-showColour and art : does colour affect mood?http://www.teachers.tv/videos/the-mix-art-store-2-colourTheatre lights http://www.teachers.tv/videos/theatre-lightsMaking shadows http://www.teachers.tv/videos/ks2-science-making-shadowsSeeing in the dark? http://www.teachers.tv/videos/primary-science-light-how-we-see-thingsHow light travels http://www.teachers.tv/videos/how-light-travelsLight and reflection http://www.schooltube.com/video/29c698fd8c90caed151e/1st-Grade-Science-Light-Reflections
- 4. Concepts to CoverLight sourcesLight travellingReflection, absorption, refractionLight and Dark and ShadowsLight travels in straight linesVision - science and children’s ideas of how we seeColour workshop
- 5. Light sourcesWhere do you think light come from? As a group try to identify sources of light – make a group list.Children could do this through drawing.Sort out the sources into different types. What criteria can you use for sorting?How is moonlight different from sunlight?What sort of light is lightning?
- 6. Light TravellingIt’s hard to think about light “travelling” – we can’t see “light” itselfAs light travels so fast, hard for children to appreciate that it travels at all:Lighthouse Example; Bulb Signal FlashingUse a torch and mirrors with your group to investigate how light travels.Can you make light travel from a torch to one mirror and then another?What stops light travelling?How far can light travel? Thought Experiment – Candle in a darkened room. Where does the light go? How far does it go? What stops it?
- 8. Use your projector to bring things into the class room
- 9. ReflectionAny shiny surface can reflect lightPlay with the mirrors and torchesInvestigate looking into bendy surfaces, concave and convex mirrorsExplain to a partner what you think happens.
- 10. AbsorptionSome materials can let light through – Some materials stop light passing through– Some materials change the light as it goes through –Which word describes each? Opaque or translucent or transparent?
- 11. RefractionRefraction – when light travels in to a different medium, its angle of direction changes (spoon in water)
- 12. Rainbows
- 13. Light and Dark and ShadowsHow can we help children experience darkness as the absence of light? (see video)What differences are there between a shadow and a reflection? (In pairs, discuss and identify differences and similarities, share with whole class)Set up a torch, object and screen to investigate how shadows change when torch, or object are moved. (Group activity, check they have sufficient torches and darken the room) Prediction and Hypothesis? What do you think will happen? Why? Because light travels in straight lines.
- 14. Reflections and ShadowsChildren often confuse reflection and shadow, “a shadow is a reflection from the sun, but it only reflects the outline”Understanding shadows: investigations with torches and card in the classroomon bright days, go outside and observe own shadows at different times of daythink about shadow length and why it changes
- 15. children need to recognise that a shadow occurs when a light source is blocked; it is the absence of lightVision and theories of how we seeDraw a person reading a book – represent the process of how she sees the book. (ask one student to sit at the front of the class and read a book – others look at her and then they all do the drawing)Draw a person looking at torch light through a mirror – represent the process of vision. (again, place a student at the front of the class, holding a mirror and shine a torch at the mirror from behind her)Theories of vision – we see with our eyes - the sea of light – the active eye – the passive eye – any others? (ask students, in groups, to explore any other ideas they know about how we see)Curriculum ReferencesFoundation stage Light ideasNC for KS1NC for KS2NC for KS3Science in an international LightQCA SchemeQCA Scheme Year 1 Light to SeeQCA Scheme Year 1 Shiny Objects
- 16. Colour IdeasWhat ideas do you think children in KS1 have about colours? Discuss in groupsTraffic LightsPaint MixingRainbows and White LightColour in Life – flowers attract insects, peacock feathers, butterfly wings
- 17. Colour FiltersLook at a white object through a blue or red filter – what colour does it appear?Look at coloured objects through different filters. What do you see?Explore colour activities for children, e.g. chromatography, colour vision, making white light with torches and colour filters, camouflage.
- 18. Light and ColourThe spectrum of colours is:When all the different wavelengths (colours) are mixed together, this is experienced as white light.Red Orange Yellow Green Blue Indigo VioletLonger Wavelength Shorter WavelengthLower Energy Higher Energy
- 19. Light and ColourPrisms can split up white light in to its constituent colours because of refraction.Water as a Prism - RainbowsFilters can remove all the wavelengths except for one.Are green objects really green?
- 20. Primary ColoursIn painting, the primary colours are red, blue and yellow
- 21. Red + Blue = Purple
- 22. Red + Yellow = Orange
- 23. Yellow + Blue = Green
- 24. Red + Blue + Yellow = Black
- 25. See hereWe have cones in our eyes for red, green and blue. These are the primary colours for mixing light.Green + Blue = CyanRed + Blue = MagentaRed + Green = YellowRed + Green + Blue = White
- 26. Issues and scienceWhat opportunities exist for dealing with Equality? How should children be grouped for science lessons? Ability? Achievement? Gender? Pairs? Some significant research suggests “mixed ability works best.How can children with disabilities be included in science? Partially sighted? In wheelchairs? Hearing impaired?How do religions deal with Light? The moon and Islam? Christianity “Let there be light”. Hindu festival of lights? Others?
- 27. Adult level science in DA2You need to justify why your investigation is at adult level – you could do this by: -Adding some adult references to science text books or web sourcesAndBy planning the investigation in a way that suggests adult thinking, e.g. by considering a number of factors, by reflecting on the accuracy, by presenting complex data
- 28. Other InvestigationsPredicting which materials light will best shine through? Measuring this with a light meter. Explore with a partner other factors that might be involved.Investigating vision – how well do you see with your right eye versus your left eye? How could you tests this? What would make the test adult?
- 29. Previous student assignmentsCheck out some BlackBoard materials which show (edited versions of) previous student assignments. What do you think of them? Which one would pass?Which is worth M level?Which one would fail? And why?????
- 30. Organising ScienceMake notes on how you would organise the following:An initial exploration of using thermometers with a Year 4 class. You have 30 children and 12 thermometers.An investigation in to how the height of a ramp effects how far a toy car travels with a Year 2 class. You have ramps, blocks, toy cars, chalk and measuring tape. You have 30 children and a small classroom. Other Issues: Assessment, Differentiation, Use of ICT, Gender Issues. Discuss possible issues that might arise in your own class