Teaching Strategies and Distributed Guided Practice/Summarizing Prompts: ·Demo lamp circuit assembly oHow to cut the correct amount of wire §Lay the wire on the floor between the two tape lines oHow to install the plug (Be sure to push wires in fully) §Separate the plug half’s §Slide the plastic cover on wire §Hold the plug with the small prong facing you §Insert the wire with the square side facing up. (Make sure to fully insert the wire!) §Squeeze the prongs together. §Side the plug cover over the prong and press the parts together fully. oCutting the wire for the switch §Measure down about 2 feet from the end without the plug §Cut out a ½” section of the square wire. §Be sure to not cut into the round wire. §Unscrew the to half’s of the switch §Place the wire into the switch; the ground wire goes around the top of the screw hole. §Screw the two half’s back together. oSplit the wire to separate the two wires §Using wire cutters cut the two wires apart §Pull the wires apart for about 1 ½” oStrip the wires §Strip each wire using wire strippers and the 14 AWG hole §Strip about ½” of the wire
·Test the resistance of the wires using a multi meter oHold the tester on the small end of the plug and test to see which wire is switched. It should be the square wire if done right. oIt should make a sound when they are connected. Then when the switch is off there should be no sound. oMark switched wire with silver sharpie
Summarizing Strategies: ·Have students wrap up completed wire and write their name and period number on the tape.
What are the steps to wire a basic lamp circuit?
· Introduce the lamp circuit
· Handout lamp circuit diagram
Circuit, Switch, Switched wire, Ground prong, Neutral prong Square wire, Round wire, AWG (American wire gauge), Wire strippers, Wire cutters.
· Demo lamp circuit assembly
o How to cut the correct amount of wire
§ Lay the wire on the floor between the two tape lines
o How to install the plug (Be sure to push wires in fully)
§ Separate the plug half’s
§ Slide the plastic cover on wire
§ Hold the plug with the small prong facing you
§ Insert the wire with the square side facing up. (Make sure to fully insert the wire!)
§ Squeeze the prongs together.
§ Side the plug cover over the prong and press the parts together fully.
o Cutting the wire for the switch
§ Measure down about 2 feet from the end without the plug
§ Cut out a ½” section of the square wire.
§ Be sure to not cut into the round wire.
§ Unscrew the to half’s of the switch
§ Place the wire into the switch; the ground wire goes around the top of the screw hole.
§ Screw the two half’s back together.
o Split the wire to separate the two wires
§ Using wire cutters cut the two wires apart
§ Pull the wires apart for about 1 ½”
o Strip the wires
§ Strip each wire using wire strippers and the 14 AWG hole
§ Strip about ½” of the wire
· Test the resistance of the wires using a multi meter
o Hold the tester on the small end of the plug and test to see which wire is switched. It should be the square wire if done right.
o It should make a sound when they are connected. Then when the switch is off there should be no sound.
o Mark switched wire with silver sharpie
· Have students wrap up completed wire and write their name and period number on the tape.