Lesson 8Ke: Paying for energy Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Domestic fuel bills Exploring: Energy Resources n/a Students Recall that electricity and mains gas Ask students to work in pairs to come survey from 8Ke complete an are charged for on the basis of the up with as many different Follow up the Exploring energy survey. energy transferred. explanations for this statement energy survey by Science. Explain why power companies use the as they can: ‘One household spends asking students kWh as a measure of energy. twice as much as another on gas and to produce a Recall some advantages of low-energy electricity each year.’ leaflet explaining appliances. the best ways to Securing Exploring: Energy survey save energy at Use data to consider cost efficiency by Ask students to carry out an energy home. calculating payback times. survey, by writing down an estimate Evaluate different ways of keeping of how long each type of electrical something warm. equipment is used for in their home Exceeding each day and its power rating (in Use data to evaluate methods of watts). Ask students to analyse their reducing carbon emissions. results (provide guidance). Explaining: 8Ke Keeping warm Discuss (or ask students to research) some of the consequences of climate change and why we should try to reduce our use of fossil fuels. Plenary: Thinking about temperature Consider All Possibilities: A household’s energy bills go down. (Possible answers: the cost of electricity or gas has gone down; they are not using as many appliances; they have bought some more efficient appliances; they have insulated their home.) Lesson 8Lb: Seasons
Lesson 8Ke: Paying for energy Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Recall that electricity and mains gas are charged for on the basis of the energy transferred. Explain why power companies use the kWh as a measure of energy. Recall some advantages of low-energy appliances. Securing Use data to consider cost efficiency by calculating payback times. Evaluate different ways of keeping something warm. Exceeding Use data to evaluate methods of reducing carbon emissions. Starter: Domestic fuel bills Ask students to work in pairs to come up with as many different explanations for this statement as they can: ‘One household spends twice as much as another on gas and electricity each year.’ Exploring: Energy survey Ask students to carry out an energy survey, by writing down an estimate of how long each type of electrical equipment is used for in their home each day and its power rating (in watts). Ask students to analyse their results (provide guidance). Explaining: 8Ke Keeping warm Discuss (or ask students to research) some of the consequences of climate change and why we should try to reduce our use of fossil fuels. Plenary: Thinking about temperature Consider All Possibilities: A household’s energy bills go down. (Possible answers: the cost of electricity or gas has gone down; they are not using as many appliances; they have bought some more efficient appliances; they have insulated their home.) Exploring: Energy survey Follow up the energy survey by asking students to produce a leaflet explaining the best ways to save energy at home. Resources from 8Ke Exploring Science. n/a Students complete an energy survey. Lesson 8Lb: Seasons