Electricity Lesson plans 1 GLE 1 2 2 Understand that energy can be transferred from one object to another and can be transformed from one form of energy to another Phase 1 Pre Assessment Students complete the following chart with the class What do you know about electricity What did you learn about electricity A circuit is a pathway through which electric current flows A closed circuit allows electricity to flow an open circuit does not Conductors are materials that allow the flow of electricity insulators are materials that do not allow the flow of electricity A switch is a device that opens and closes a circuit Phase 2 Exploration The following materials are already at the investigation area when the students come into the classroom from their morning activity insulated electric wires D cell alkaline battery and light bulb Good morning today we are going to do some scientific exploration Students will work in groups of three and use trial and error to build a circuit that lights a bulb This project is top secret You must keep your activity and findings secret so whisper to your partners so the people that you share a lab with won t discover your secrets Anyone who allows information to leak out to the other groups will have 10 points deducted the first time and then they must work alone to find the answer to the questions Phase 3 Inquiry Hold up a D cell battery and ask students if they know what it is and what it is used for Answer A D cell battery is a source of electricity A source means a place to go where something is available or where something comes from Hold up a light bulb what is another name for it in this experiment A the light bulb is a receiver of electricity Designate a group note taker that will record the answers to the following questions How can you get electricity from a source to a receiver Where do connections need to be made How does electricity flow through a circuit Where did you connect the wires to the battery Where did you connect the wires to the light bulb What happens when you touch the wire to the glass part of the bulb Introduction of terms Battery refers to more than one cell but people use battery and D cell interchangeably An electricity source provides energy to do something in this case a battery An electricity receiver is the component that accepts and uses the electricity from the source to make something happen A circuit is a pathway through which electric current flows A closed circuit allows electricity to flow an open circuit does not Conductors are materials that allow the flow of electricity insulators are materials that do not allow the flow of electricity The filament of a light bulb is the part that gets hot and produces light Components are the parts of something A switch is a device that opens and closes a circuit Phase 5 Students use other test objects to complete a circuit Students discover whether they are conductors or insulators of electricity Phase 6 Formative Assessment Draw and label a battery and bulb circuit on the worksheet provided Lesson Two Objective Given a teacher lead discussion and presentation on electricity students will be able to identify the essential components of electric circuit draw pictures and schematic diagrams that represent electric circuits and communicate understanding of the process Phase 1 Pre assessment Good morning today we will be reviewing an electric circuit that can light up a light bulb Who can tell me how to draw that circuit Continue to call on students until the circuit is complete What general shape am I tracing Circle Who can describe the pathway You are drawing the pathway through which the electricity flows from the D cell to the light and back to the battery Another name for this is circuit The circuit must form a complete circle from one end of the D cell back to the other end of the D cell for the electricity to flow We call the individual items in the circuit the circuit components The electrical current flows from the negative end of the battery the flat end through the circuit and to the positive end the end with the bump The part of the bulb that makes light is the filament When electricity goes through the filament it gets so hot that it gives off light Phase 2 Review of terms Battery refers to more than one cell but people use battery and D cell interchangeably An electricity source provides energy to do something in this case a battery An electricity receiver is the component that accepts and uses the electricity from the source to make something happen A circuit is a pathway through which electric current flows A closed circuit allows electricity to flow an open circuit does not Conductors are materials that allow the flow of electricity insulators are materials that do not allow the flow of electricity The filament of a light bulb is the part that gets hot and produces light Components are the parts of something A switch is a device that opens and closes a circuit Phase 3 Discussion Each student has the same materials to work with from the previous day How do you know when electricity is flowing in a bulb circuit Something happens in this case a light shines How many wires connect to the battery and where do they connect to make the circuit complete One wire must connect anywhere on the negative flat top metal part of the battery and another wire must connect anywhere on the positive side or bumpy side of the battery How many wires connect to the bulb where do they connect to make the circuit complete One wire must connect to the metal tip at the bottom of the bulb and another wire must connect anywhere on the screw in part of the bulb How did you get the wire to light with one bulb Electricity is a one way and the current is the same in both wires Evidence for the flow of electricity is that something happens a light or a motor turns on When electrons a subatomic particle move from a place with electron excess to a place of electron deficit we call the flow an electric current The motion of these particles can be used to do work The energy we used is from a D cell when the energy is Used up we say the batter is dead The electric current travels through a circuit The pathway must go from one terminal on the battery to the receiver and from the receiver back to the other terminal of the source Once there is a complete pathway from one end of the D cell through the light bulb and back to the other end of the D cell electricity will flow through the components ant
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