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THE ERUDITE PLATYPUS

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Welcome to The Erudite Platypus, my very own passion project filled with unique and engaging content about teaching computer science in middle school. I selected the name The Erudite Platypus as I am shy, diverse, rare, yet real. Many people compare Computer Science teachers to unicorns because you never see them. We are just rare not mythical! Explore my site and all that I have to offer.  Perhaps The Erudite Platypus will ignite your passions as well.

 
 
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Is it scrap paper or a hidden message?

Updated: Oct 7, 2019

After watching bits of the fictitious movie "National Treasure" the class wanted to explore messages with lemon juice. Our supplies were:


1) bottle of lemon juice concentrate

2) copy paper

3) Q tips

4) imagination


The students were given directions written in a simple Cesar Cipher that had been taught previously. Once they had decoded the instructions, they began writing their messages. We let the messages dry over night. I opted to use the old school method of using heat from a candle to warm the message enough to view. As this method can result in fire, all of the normal precautions found in a science lab should be used: safety goggles and some form of fire extinguishing such as sand, fire blanket or a fire extinguisher. In our case, our safety supplies were safety goggles and a fire extinguisher.


The downsides of this method include time and the REAL possibility of destroying the message as it might catch on fire-which we did much the the students delight! Thank goodness we had also opted to add to our safety precautions to go outside to a paved area to conduct our enlightening experience.



FYI, we did attempt to use a blow dryer as shown in the movie. It did not work with the type of paper and "secret ink" that we used.

#cryptology #middleschool #cipher #computerscience

#CS #computerscience #decode #code #cipher


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