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Day Program September 2020

By Jack Posted on August 25, 2020 Posted in Announcements No Comments

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

Biology: why does hyperglycemia damage blood vessels? Part 0

By Jack Posted on April 20, 2021 Posted in biology No Comments

Self-tutoring about why hyperglycemia can damage blood vessels: the tutor investigates. Hyperglycemia, which means elevated blood sugar, has long been known to cause damage to blood vessels, but how? A top-down explanation begins as follows: In the cells that line …

Biology: why does hyperglycemia damage blood vessels? Part 0 Read more »

Biology: exercise and insulin sensitivity

By Jack Posted on April 19, 2021 Posted in biology No Comments

Self-tutoring about insulin sensitivity and exercise: the tutor looks up the connection. An exercise session can increase glucose removal from the blood by 40% or more. Furthermore, improved glucose removal may continue for 48-72hr afterwards. Source: care.diabetesjournals.org

Bird watching: red-breasted nuthatch, part II

By Jack Posted on April 18, 2021 Posted in bird watching No Comments

Self-tutoring about birds: the tutor continues about the red-breasted nuthatch. Continuing from yesterday’s post, I want to talk more about the red-breasted nuthatch’s voice. The commanding, repeating tone it makes that’s rather like an alarm from a timer has been …

Bird watching: red-breasted nuthatch, part II Read more »

Bird watching: red-breasted nuthatch

By Jack Posted on April 17, 2021 Posted in bird watching No Comments

Self-tutoring about birds: the tutor reports a great sighting. I’ve mentioned in a few other posts that my best bird discoveries have been when I wasn’t looking for that bird. This is one such case: I didn’t have the red-breasted …

Bird watching: red-breasted nuthatch Read more »

Baking: density of granulated sugar

By Jack Posted on April 16, 2021 Posted in baking No Comments

Self-tutoring about sugar density: the tutor looks it up. approx. 0.85g/mL = density of granulated sugar poured from the bag. The reason granulated sugar seems less dense than water, by that figure, is that the grains have air pockets between …

Baking: density of granulated sugar Read more »

Retrospect: the farm kids, part 1

By Jack Posted on April 14, 2021 Posted in retrospect No Comments

Self-tutoring about people and events from the past: the tutor begins about the “farm kids.” “Jack, you belong in the slaughterhouse,” one of my classmates observed one day. I recall it like yesterday: I could take you to the exact …

Retrospect: the farm kids, part 1 Read more »

Comp Sci: LISP: how to check if a variable is defined

By Jack Posted on April 12, 2021 Posted in computer science No Comments

Self-tutoring about LISP: the tutor mentions how to check if a variable if defined without invoking an error. Let’s imagine, in LISP, you want to check if x is defined. (boundp ‘x) T if it is, NIL if not:) Source: …

Comp Sci: LISP: how to check if a variable is defined Read more »

English: vocab: froward

By Jack Posted on April 10, 2021 Posted in vocabulary No Comments

Tutoring English, new, simple words are always interesting. The tutor mentions froward. froward:contrary: defiant When I saw froward I thought it was a misprint. Yet, “forward” wouldn’t have made sense, so I looked it up. It’s a great word I’ve …

English: vocab: froward Read more »

Retrospect: the in-crowd, part 0

By Jack Posted on April 9, 2021 Posted in retrospect No Comments

Self-tutoring about people and events from the past: the tutor mentions the first “in-crowd” he knew. Up through grade four, there were always kids who were a little more popular, but the difference wasn’t typically much. Moreover, even through grade …

Retrospect: the in-crowd, part 0 Read more »

Agriculture: can grazing improve the soil?

By Jack Posted on April 8, 2021 Posted in agriculture No Comments

Self-tutoring about agriculture: the tutor asks a question that’s suggested itself to him. Because I was a military kid, I lived in numerous places growing up, including the Annapolis Valley in Nova Scotia and near Summerside, PEI. Both of those …

Agriculture: can grazing improve the soil? Read more »

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