Tag: <span>substitution</span>

02.01 Why is algebra important?

(approximately 1 minute reading, 25 minute video, a ten minute article, a twenty minute puzzle and three ten to twenty minute review quizzes) The term “Algebra” came from the Arabic word “Aljaber”, which means “restoring the broken”. The father of algebra is Alkhwarizmi, whose book is “Aljaber wa Almuqabala”, which …

02.02 How can I create a model of something that is very large?

(introduction = 3 minutes reading and a 7 minute video) To Scale: The Solar System from Wylie Overstreet on Vimeo. The distances between the planets are very large and ever changing as they move around the sun. There are a few ways of expressing very large numbers. One google can …

02.04 How is online data and credit card information kept safe?

(approximately 1 minute reading and a 20 minute activity) Photo by CardMapr.nl on Unsplash Cryptography uses factoring and polynomials to build and break systems. If you watched the movie The Imitation Game, it is all about cryptography and how they were trying to decode transmissions sent during the World Wars. …

02.05 How is interest calculated?

(approximately 8 minutes reading, a 10 minute activity and a 20 minute slideshow/activity) Photo by Christiann Koepke on Unsplash Read this online article on how credit card interest is calculated and, while following through the calculations provided, work through the approximate calculation using an APR of 20.24% and the 25 …