This document provides an overview of topics covered in a science lecture on electricity, magnetism, and rocks. It includes:
1. Objectives related to becoming familiar with teaching electricity, magnetism, and rocks as well as associated curriculum standards.
2. Suggested hands-on activities to teach concepts like circuits, static electricity, and the direction of electric current.
3. Information and misconceptions about concepts like conductors, insulators, atoms, and how circuits work.
4. Resources and investigations related to teaching topics like magnetism, types of rocks, and developing lesson plans. Criteria are provided for assessment of learning.
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2. To understand the background scientific principles involved in teaching electricity To become familiar with the curriculum for electricity To become familiar with a range of teaching and learning activities about electricity Linked Standards: Q10, Q11, Q12, Q14, Q15, Q26 Objectives 1
3. To become familiar with the curriculum requirements for materials and their properties, including magnetism and rocks To consider ways of teaching magnetism and rocks To introduce the assignment activity Linked Standards: Q11, Q12, Q14, Q15, Q17, Q23, Q22, Objectives 2
4. Take a bulb, battery and a wire only, Make the bulb light up. Do this in 4 different ways. Look at a bulb using a magnifier. Draw what you can see (aim for 10 parts). Discuss what the parts of a bulb are for. Investigate making circuits with bulbs in bulb holders. Use more than one bulb and more than one battery. Introduction to Electricity
6. In groups, identify what you know already. Make a group list of things you know, things you are not so sure about and things you don’t know. Compare your individual ideas with the group list. Can you recognise three types of electricity? Where do you think electricity comes from? What do you know about electricity?
7. Atoms and molecules Electricity happens at the atomic level For info see here How electricity works see here Atoms and molecules!
8. Static electricity includes sparks in dry clothes, rubbing a balloon on clothes, lightning. The concept of electrons. Mains current electricity – powerful, alternating, how is it generated? Battery current electricity, safer, portable, direct. What other differences can you identify? Three types of electricity
9. Reverse the batteries in a circuit with bulbs in it – does it make any difference? Reverse the batteries with motors – explore the direction that motor revolves. Reverse the batteries with buzzers – what happens with different types of buzzer? What does this tell you about direction of current? Direction of current
11. Conductors and Insulators – some materials conduct electricity well, some do not – How could we expect children to test materials? What misconceptions would you expect? Metals are good conductors as they have a “cloud” of free electrons. When an electrical current is applied, the electrons are “energized” and move around in a circuit. When the electrons encounter a resistor or device such as a bulb or motor, the electrical energy is converted to light or kinetic energy. Conductors and insulators
12. One or two connections? Clashing currents model? Positive to negative or vice versa? Consumption model – is it used up as it flows round the circuit? Is it shared equally by all the components? How do you think a circuit works?
13. NC Electricity for KS1 NC Electricity for KS2 QCA Scheme for Electricity Progression in Electricity
14. Look at the list of potential investigations in session 1 of the reader. Discuss with a partner some issues that might arise if you chose one of these questions to investigate. Can you think of any other questions you might wish to investigate? Investigations
15. An investigation needs a question that you want to find the answer to. It needs predictions – educated guesses – what you think will happen? Hypothesis requires explanation – why you think something will happen? An investigation will include experiments. An experiment may need fair testing You will need to observe, or measure and record results. Planning investigations
16. Demonstrate accurate scientific knowledge related to your chosen investigation question Q14 Show the ability to independently evaluate your own learning, using relevant references and relating your conclusions to the prediction and hypothesis you made. Q8 Demonstrate that you can act independently in planning and implementing the investigative task at an adult level. Q14 Demonstrate that you can summarise complex material for presentation in electronic format, using a selection of text, images and graphics. Q4, Q17 Demonstrate that you can identify children’s learning concerning scientific investigations Q 10, Q29 Criteria for level 3
17. Demonstrate a depth of accurate scientific knowledge related to your chosen investigation question. Q14 Show the ability to critically and independently evaluate your own learning, using relevant references and relating your conclusions to the predictions you made. Q8 Demonstrate that you can act independently in planning and implementing investigative task at an adult level, making decisions in complex and unpredictable situations. Q14 Demonstrate that you can summarise complex material for presentation in electronic format, in an innovative or creative way, using a selection of text, images and graphics. Q4, Q17 Demonstrate that you can identify and evaluate children’s learning concerning scientific investigations Q10, Q29 Criteria for M level
18. Think/pair/share – ie think of all the things that you know about magnetism. Record your ideas in groups. Think about: – what is magnetism?, what materials are magnetic?, where are magnets used? Where are magnets used in everyday life? Magnetism Workshop
19. Magnets Exploration – can you think of how to measure the strength of a magnet? What investigations could be done with magnets? Using Magnets in Class: Magnet Care; Iron Filings Safety QCA Unit 3E Magnets and Springs Magnetism workshop 2
20. Certain elements, can create a magnetic field and are known as magnetic materials. These are iron, cobalt and nickel. Steel is an alloy of iron, sometimes it is magnetic as well (though not the stainless steel in the metals kit). Only iron, cobalt, nickel and their alloys are attracted by a magnet. Unlike magnet poles attract, like magnet poles repel. Magnets Workshop: Magnet Facts
21. Use the sets of rocks and minerals to observe and try to classify them according to your own criteria. Create a concept map, with a partner, for what you know already about rocks, minerals, their origins and changes Studying Rocks
22. Igneous – created from the cooling of magma and lava eg granite and basalt Sedimentary – when igneous rock is subject to erosion – by water, wind, plants (tree roots), temperature changes (thawing/freezing), is deposited as a sediment in layers eg sandstone, limestone, mudrock. Fossils can be laid down in sedimentary rock, Metamorphic – sedimentary rock is subject to pressure over time beneath the crust – undergoes metamorphosis eg carbon to diamond. Examples marble, slate Types of Rock
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24. Find out what the national curriculum/QCS scheme says about rocks and soils at KS1, for example Children should learn: that there are many materials and these can be named and described and KS2 example Children should learn: that differences between rocks can be identified by testing Teaching about Rocks and Soils
25. Work out some ideas for a lesson plan on rocks with another student in your group. Considere using the resources below – QCA scheme, BBC web site, other web sites? QCS Scheme Unit 1C QCA Scheme Unit 3D Scienceclips US site Planning for Rocks and Soils