Day Program September 2020
Oracle Tutoring will offer a day program to commence after Sept 1: Middle to high school levels Emphasis on math and academic subjects Help with online courses
English: how to pronounce composite
Tutoring English, you hear different pronunciations: sometimes a tutor feels the need to check. I’ve always said COMP-o-site. Yet, the other day I heard someone say comp-O-site. Their pronunciation surprised me, so I decided to check its validity. Merriam-Webster surprised …
Math, philosophy: transitivity, part 0
Tutoring math, you encounter ideas that manifest in real life. The tutor mentions transitivity. Where and when I took grade 10 math, part of the curriculum was geometric proofs. It was completely different from the rest of the course: no …
Math: Pythagorean triples and Fermat’s Last Theorem
Tutoring math, ideas are always important. The tutor mentions Fermat’s Last Theorem. A Pythagorean triple is a set of three integers that satisfy a2+b2=c2 There are infinite Pythagorean triples. However, there are no corresponding sets of integers for higher n: …
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Computer science: arity
Self-tutoring about computer science: the tutor mentions the term arity. arity: the number of inputs a function needs when called. Source: definitions.net
Astronomy: can you see the Southern Cross from the northern hemisphere?
Self-tutoring about astronomy: the tutor mentions an interesting fact about the Southern Cross. Apparently, from inside the tropics of the northern hemisphere, the Southern Cross can be seen, low in the sky, during winter and spring. Source: www.constellation-guide.com
Computer science: what is serialization?
Self-tutoring about computer science: the tutor mentions the concept of serialization. Serialization means producing a string of characters (or perhaps just 0s and 1s) that can be written to a file, so preserved against power loss. That string of characters …
Biology: Anabolic steroids, part 0: addictive?
Self-tutoring about drug consumption: the tutor mentions anabolic steroids. I overheard that someone was “addicted to steroids.” “But can that be?” I wondered to myself. “I’ve never heard that steroids are physically addictive.” I decided to look further. My reading …
Astronomy: Southern Cross
Self-tutoring about astronomy: the tutor brings up the famous Southern Cross. I’ve been hearing about the Southern Cross for decades. I decided to look it up. Important with the Southern Cross are two other stars, the Pointers, which are brighter …
Appliances: what is a grease trap?
Self-tutoring about appliances: the tutor checks out the idea of a grease trap. I recall decades ago talking to a restaurant owner who was sizing up a new project. He mentioned it needed a grease trap. Ever since then I’ve …
Math: set subtraction
Tutoring math, ideas can always be revisited. The tutor mentions set subtraction. Set subtraction is different from arithmetic subtraction. If A and B are sets, the operation A-B ignores what’s in B only; it just gives back what’s present in …