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Presentation transcript:

Agree Learning Outcomes: Topic: 7.2.2 – Energy analysis - electric current Spec link: P7.1c and d, P7.2a and f Time: 70 mins Recorded Assessment: Review: Check answer and deal with misconceptions. Present New Knowledge: TLD – Discuss the loss of heat from a house. Walls, floors, ceilings, windows, draughts etc. Lead the discussion to insulation. Agree Learning Outcomes: Why does your house cool down? How does the thickness of the wall affect the rate of cooling? How does the thermal conductivity of the walls affect the rate of cooling? Apply To Demonstrate: Complete questions. Construct Meaning: Come up with ways to improve the retention of energy within a house. Types and thickness of materials etc.

Bell As you enter the room What can you tell me about this image? What conclusions can you draw from this image? How do you know the energy in the thermal store of your house is not increasing even though the heating is on?

LO Learning questions Why does your house cool down? How does the thickness of the wall affect the rate of cooling? How does the thermal conductivity of the walls affect the rate of cooling?

Why does your house cool down? NK Why does your house cool down? Think of all the ways you can improve your house to keep it warm. Write down the reason why each of your ideas helps.

Why does your house cool down? CM Why does your house cool down? Do you think the thickness of your walls would help? What about the thickness of your loft insulation? The materials they are made from? Why?

How does the thickness of the wall affect the rate of cooling? CM How does the thickness of the wall affect the rate of cooling?

Thermal Conductivity

How does the thermal conductivity affect the rate of cooling? CM How does the thermal conductivity affect the rate of cooling?

Time for some questions – click the sheet you want ATD Time for some questions – click the sheet you want Aiming for the top? Not quite there yet?

Review your work using the mark schemes ATD Review your work using the mark schemes Aiming for the top? Not quite there yet?

LO Learning questions Why does your house cool down? How does the thickness of the wall affect the rate of cooling? How does the thermal conductivity of the walls affect the rate of cooling?