# Science, Electricity - lesson obs

Discussion in 'Primary' started by Scorchio, Mar 6, 2011.

1. ### Scorchio

I have a lesson obs next week - subject is Science, we are currently on circuits and conductors. Problem is that we have just about finished the unit - we have covered
making a circuit
making switches
conductors and insulators
making bulbs brighter / dimmer
circuit diagrams and symbols
really am stuck for ideas, focus is Sc1 and AfL - it needs to be a practical lesson, with lots of opportunity for AfL. Have been thinking about making fruit batteries but is that really 'science' as in the explaination of why they work. I am so stuck!!!
Our next unit is habitats which i could do, but it would be the first lesson in habitats and again, am stuck for an investigative lesson that could take place in an hour or so - the lesson could be for the whole afternoon (2hrs) but only observed for the first hour.
I have a year 4 class with some really bright children who pick up on new ideas very quickly and are really into the electricty unit, and some children who require a lot of support for writing but are great with practical activities. We have lots of equipment, I don't have any support that lesson, 25 children in the class.
Any ideas would be brilliant.
Thanks

2. ### Scorchio

Or I could move onto Moving and Growing or Friction next - just need a fab first lesson which ticks the boxes for Sc1 and AfL - just getting myself into a muddle, can't think straight as too much to think about!

3. ### DFCNew commenter

Ask chn to make one of those games with the wiggly wire and a loop. You have to move the loop along the wire without it touching. If the loop touches the wire it make a sound or the bulb flashes.
HA = no help
AA = circuit diagram / hints
LA = Your support.
Can chn build it?
Can chn explain how it works?
Just a Sunday night thought!

4. ### zoeeuan

If you want to stick to the fruit batteries you could look at
• different metals for the electrodes
• different fruits
• fruit in series and the voltages produced using a multimeter (or by the brightness of a bulb)
You could give the pupils different amounts of guidance and it would definately cover Sc1 and the AfL could be based around the feedback that they give / work produced (best fruit / electrodes etc - I've done this with low ability yr 7 and they have produced a survival guide based on fruit batteries)

5. ### minnieminxNew commenter

Can you give them a problem that needs a circuit built to solve it?

Or get them to make a burglar alarm?

6. ### minnieminxNew commenter

Or get them to think of a question/hypothesis to answer/test? Let them work in small groups and come up with their own investigation using the equipment you have set out at the front.

They come up with the idea.
Plan it roughly
Carry it out
Present their results.