In Design and Computer Science, we were given the task of teaching the whole class our topic, Error Detection and then making a display explaining it for a local Makers Faire. Error detection is the detection of errors in transmitted data. The receiving computer needs to check that the data coming into it has not been corrupted by any electrical interference. The recognition of corrupted data is called error detection while the reconstruction of corrupted data is called error correction. The bits (instructions computers are given using 0’s and 1’s) are put into imaginary rows and columns, and by adding parity bits (a bit added to the end of a string of binary code to ensure that the total number of bits is either even or odd) to each row and column, we can detect if an error has occurred and where. Here is a visual to better explain what I’m talking about: To make this concept simpler and an engaging teaching lesson, my group and I decided to do a magic trick with the class. We cut out 36 identical 2-sided hearts, one side was red and the other side was white
2. Then, we added an extra row and column of the hearts (making the red side of the hearts either even in every column and row) telling the audience that we were “making it a little harder” 3. Then we asked that same student to flip a card over while the “magician” was turned around and the “magician” would try to figure out which card was the one the student flipped over. Since one of the hearts was going to be flipped over, the row and column containing an odd amount of red hearts would be the heart that was flipped over because all the other rows and columns had an even amount of red hearts. After teaching Error Detection, my group and I created a display to teach Error Detection at a local Makers Faire. The finished product turned out really well. If I was to do this project again I wish that we could have more time because it was rushed and I know that my group and I could have done much more had we had more time. We were going to do string art inside of all the letters spelling out error detection but we did not have enough time. Also it was supposed to be a 6x6 grid of the hearts but we ran out of hot glue sticks on the very last day and if we had another day we could have gotten more and finished our display. It turned out very well though and I’m happy with the finished product!
Joke: Q: What do you call this: “Pieces of nine, pieces of nine”? A: A parroty error.
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AuthorHibah Shafi is a Senior at New Technology High School. Archives
May 2019
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