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The Art of Tangrams and its Mathematical Implication

  1. Our final project will be working the art of tangrams and trace back its history to ancient China 2. References                                                     Read, R. C. (1965).  Tangrams: 330 puzzles . Courier Corporation. URL: https://books.google.ca/books?id=80yRBQAAQBAJ&lpg=PP1&ots=EzOW0rhuWt&dq=history%20of%20tangrams&lr&pg=PP1#v=onepage&q=history%20of%20tangrams&f=false   Russell, D., & Bologna, E. (1982). Teaching Geometry with Tangrams.  The Arithmetic Teacher,   30 (2), 34-38. Retrieved December 6, 2020, from http://www.jstor.org/stable/41192134   Siew, N. M., Chong, C. L., & Abdullah, M. R. (2013). FACILITATING STUDENTS'GEOMETRIC THINKING THROUGH VAN HIELE'S PHASE-BASED LEARNING USING TANGRAM.  Journal of Social Sciences ,  9 (3), 101.   T...
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Homework for 10.20

 Research online the significance of the Eye of Horus and unit fractions in ancient Egypt. What was most interesting to you in your findings? The Egyptian Unit fractions are based on the Eye of Horus. Horus was the ancient Egyptian sky god who was usually depicted as a falcon, most likely a lanner or peregrine falcon.[7] His right eye was associated with the sun god, Ra. It was believed by the Greeks and Romans that an evil heart could get to the eye. The thought to be powerful effects of eyes and optics created the myth that the energy-producing power of the eye had the ability to cast evil spells with just a glance. Because the ancients believed the evil eye could be counteracted with a 'good eye', myths about Horus arose.[9]  The eye of Horus was often used to symbolise sacrifice, healing, restoration, and protection.  I think the most interesting thing here is that the eye has so many connotations and it is something almost sacred in Egyptian culture. The an...
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Homework Egyptian problem

Adam gave Sam 45 dollars to buy groceries. He requires that the number of apples should be three times the number of bananas. The number of bananas should be double the number of oranges. suppose apples cost 2 dollars and bananas cost 1 dollar, and oranges cost 1 dollar, how many of each fruit should he buy? modern solution:  let the number of oranges be x.  x +2x+6x*2=45 15x=45 x=3 false position method: let x be 2  2+4+6*2*2=30 we need 45, which is 45/30=1+1/2 as big, so x must be 2 times 1+1/2 , which is 2+1=3 check: if x=3, x +2x+6x*2=45
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