Week Twelve Assignment 2/2

This is the final look:

Our Idea:
After teaming up with Yuke, We thought what kind of outcome we want to have from this circuit and different colors of light...so what about traffic light?

We chose traffic light not because it is a combination of three colors of light, but it is also meaningful in education to teach kids how to cross the road under the guide of traffic light, not only as a passenger, but also as a future driver.

Process:
1) Prepare the materials
What we need are scissors, paper, color markers, paper circuit and led light.

After we setting up what we would make is a traffic light, we decided to make the background more like "road".

First, we print the zebra cross on the piece of paper.

 And then, we prepared the young pedestrians who are waiting to cross the road. Print it on a piece of paper and cut them off.

 And then, we draw a traffic light, cut it off, and draw some color on it.

2) Think how we complete the circuit 

Because traffic light is three colors that light up in sequence. They would never light up all at once or all shut up at once, which means in the circuits, we need to choose parallel circuits and then add a switch to each parallel of the light.

3) Attach the paper circuit!

This is an important part because there are lots of factor involved and any of those factor can make the circuit disconnect.

We found out that we should try the conductivity of the circuit after each attachment, otherwise we can effectively find out if that parallel circuit work or if that part of circuit connect well or not.

 Then carefully mark the place of switch on traffic light and paste the switch.

4) Enjoy your final outcome!

What I learned in this project is trouble shooting because we tried so many times at the Attach the circuit part. At first we forgot to try from every step and started to remember we should do the test out until we almost finish the circuit. We tested the green light and disappointingly found out the green light did not work. Therefore, we went to the very beginning to try if the circuit we paste was not working, and luckily, we found it was the turn of the circuit that did not paste tightly which lead to non-conducting. And after that, we tested out the conductivity of the circuit after every step and finally the traffic light worked well! This project means a lot to us because we are not science person and this is the first time we deal with physics after grade 6. If we can learn a lot from this circuit project, we definitely sure that students can learn a lot more from this hands-on circuit project.