I was felt a bit overwhelmed by Week 1's readings and videos, because I never learned these knowledge before, only learned some circuit thing in my high school... So I spent lots of time doing the readings and watching the videos, unfortunately, I am still confused about something in the "lab" section, still cannot fully understand how the electricity flows in a circuit.
Took lots of notes about the basic knowledge, also added some Chinese to help me understand and memorize...
LAB
Spent much time making the LED on. I found there is nothing wrong with my circuit and everything worked well, but the LED still did not work. I asked many classmates and they were confused, then i changed one black wire, it works... So next time I will make sure all the wires I put in are also in good conditions!!!
The LED was not on at the beginning with the circuit correct, and learned from the previous lesson (something wrong with the wire), I get another pushbutton, it works!!
After doing these work, I reviewed the circuits mentioned in the lab section again, and I found i can understand how the electricity flows!!