We learned how to use Arduino, a program where you don't necessarily need to know coding, but know where to fill in the blanks. This program controls a motherboard, from which you can control all sorts of basic sensors. We used a humidity sensor and a distance sensor. The humidity sensor could record temperature, and track global warming and changes in temperature. The distance sensor could also turn on a light, or do any action you tell the computer to do. I played around with the light blinking on and off and got it down to 0.005 seconds of being on and 0.005 of being off. It looked as if it was just on, not blinking on and off at a speed faster than our eyes can see.
We prepared our presentations for later. We put everything we learned in the class that was important in the presentation. I wanted to use the 0s and 1s computer language to have a secret message that read CL, but no one liked that. We had in image that showed each of the electronics we used, without the wires. He kind of Wall-e eye looking sensor is a distance sensor. The small white sensor is used for humidity. The big blue piece is the motherboard and can activate any sensor properly hooked up and coded in. The small light is a simple LED light controlled by coding.
Today was pi day. The proper way is π, or the Greek letter assigned to this irrational number that still has no end. Any circle's diameter:circumference ratio is always equal to pi. With the 7th graders we drew a circle with a compass. We then drew two chords, any two points connected by a line, and found where the perpendicular bisectors intersect with each other. We then drew the diameter and measured the circumference. I was off by about 1 cm, but it's human error.
Afterwards we went down near Café Coffee Day and presented what we learned that day. I learned many new things from other groups' presentations such as how musicians make their songs. While presenting, we had an issue with our coding, but I personally feel like it may have been our shadows.