Unit1 : Measuring voltage and current /simple circuits in series/calculating power/ switches and potentiometer as a voltage divider/ building power supplies with an AC adapter (120VAC to 3VDC, to 12VDC) and an USB plug
Unit2 : Resistors/Ohm's law/potentiometer as a variable resistor/build a simple electromagnet and coil gun
Unit3: Circuits on the solderless breadboard/audio jack/transformer Step up and step down / oscilloscope/electricity from the grid
Unit4: Circuit in series vs in parallel/photoresistor (LDR)/ build a simple motor
Unit5: capacitors/diode/inductor/build a simple AC generator
Unit6: relay/transformer and induction/switching transistor/ simplest motor
Unit7: capacitor to control a switching transistor / LDR to control a switching transistor/blinking LED with a LCR oscillator / next step: Op amps.