Introduction: Feedback Machine
I thought about an invention that could benefit my teaching practice. I teach Computer Science to thirty different groups weekly. I do not have a lot of experience teaching this subject and I feel I need feedback from my students and analyze if my lessons are being attractive and challenging enough for my students. That is why I came up with the idea of this project: “Feedback Machine”
- 1 computer ( to create a program on Scratch)
- 1 Makey Makey board
- 9 Alligator clips
- 1 extra long Alligator clip
- 3 connector wires
- 1 big piece of cardboard
- 1 metal straw
- some sheets
- 1 pen
Step 1: Machine Draft
Once I had an idea in my head it was time to reflect it on paper. I wrote down the questions and possible answers I wanted to be in my machine.
Step 2: Starting to Program on Scratch
I started to think how I could create a program on Scratch for my machine. The first thing I made on Scratch was to create six variables:
Three variables for the first question: Did you enjoy this lesson?
- I didn’t enjoy it
- I liked it
- I loved it
Three variables for the second question: How challenging was this lesson ?
- Piece of cake
- Bit challenging
- Too hard
Step 3: Keep Programming
After I created the variables I started adding events blocks like this one:
When down arrow key pressed then change “I love it” by 1.
Repeat the same with every variable.
I also programmed a start and reset bottom. Clicking on the start icon the program will start asking the questions. I also used the text to speech blocks that Scratch offers. Clicking on the reset icon all the variables will be reseted to 0.
Step 4: Crafty Part
Once I finished creating my program on Scratch I started working on making the cardboard for the machine. First, I wrote down questions and answers on construction paper and then I pasted them on a cardboard. After that, I made some holes on the cardboard and put metal fasteners.
Step 5: Connecting
Once I had the cardboard ready I connected the alligators clips from the Makey Makey board to the fasteners, I made sure I connected them to the right spots by checking my program on Scratch. I connected Earth with a long alligator clip to a metal straw that will be used as a pointer stick for our machine.
Step 6: Step 6: Try It Out!
Time to try it out! I connected the Makey Makey to my laptop and tried the Feedback Machine.
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