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Home › 2021 › October

Month: October 2021

Retrospect: ants in the lawn

By Jack Posted on October 31, 2021 Posted in retrospect No Comments

Self-tutoring about a lawn at one of my childhood homes: the tutor reflects… The place we lived where my father took most interest in the yard was in the Annapolis Valley. No surprise: It was a beautiful property, with big …

Retrospect: ants in the lawn Read more »

Philosophy: what is a witch?

By Jack Posted on October 30, 2021 Posted in philosophy No Comments

Self-tutoring about Halloween and traditions: the tutor looks into the definition of “witch.” Traditionally, the reason people have been afraid of witches, as I understand, isn’t because they’re scary or evil. Rather, it’s because of the belief that witches can …

Philosophy: what is a witch? Read more »

Retrospect: Halloween ’75

By Jack Posted on October 29, 2021 Posted in halloween No Comments

Self-tutoring about people and events of the past: the tutor reflects about his most fun Halloween as a kid. In 1975, I lived on a country road where the houses were far apart. I think, that Halloween, I might’ve gone …

Retrospect: Halloween ’75 Read more »

Bird watching: barred owl, part 0

By Jack Posted on October 28, 2021 Posted in bird watching No Comments

Self-tutoring about owls: the tutor mentions an encounter. Barred owls didn’t live on Vancouver Island until, depending whom you ask, the 60s, 70s, or 80s. However, they may be the most common owl here now. I’ve had four encounters with …

Bird watching: barred owl, part 0 Read more »

Vocabulary: pareidolia

By Jack Posted on October 27, 2021 Posted in vocabulary No Comments

Tutoring English, vocabulary is always interesting. The tutor mentions pareidolia. pareidolia: the tendency to see a feature in a scene that doesn’t contain it, because the scene contains a visual pattern that suggests it. Pareidolia causes people to see animals …

Vocabulary: pareidolia Read more »

English: “busted”, part0

By Jack Posted on October 26, 2021 Posted in vocabulary No Comments

Tutoring English, you’re bound to encounter hilarities connected with vocabulary. The tutor recalls one from his childhood. In elementary school, my sister had more friends than I. Importantly, she attracted a greater variety of friends. With some of them she …

English: “busted”, part0 Read more »

Woolworths – became Foot Locker?

By Jack Posted on October 24, 2021 Posted in business No Comments

Self-tutoring about stores and brands: the tutor shares a discovery. When I was a kid, big places typically had a Woolworths store. I’d call Woolworths a department store; others might call it a variety store. They were big stores, with …

Woolworths – became Foot Locker? Read more »

Autumn scene: jack-o-lantern mushrooms, a northern flicker, and a pileated woodpecker

By Jack Posted on October 23, 2021 Posted in nature No Comments

Self-tutoring about nature observation: the tutor relates a scene. Today, returning from a run in the early evening, I walked through a school yard. The sun was just setting, but daylight wasn’t yet faded. Beside the school, there’s a paved …

Autumn scene: jack-o-lantern mushrooms, a northern flicker, and a pileated woodpecker Read more »

Retrospect: S and P, part 0

By Jack Posted on October 22, 2021 Posted in retrospect No Comments

Self-tutoring about people and events of the past: the tutor brings up a good recollection. The Annapolis Valley was the only place we lived as a family where we knew people because my parents had lived there before they’d had …

Retrospect: S and P, part 0 Read more »

Statistics: endogeneity

By Jack Posted on October 22, 2021 Posted in statistics No Comments

Tutoring statistics, definitions are of interest. The tutor mentions endogeneity. endogeneity: when an explanatory variable affects the error term in a predictable way. An example would be a model that measures the amount of daily sunlight received, but assumes (wrongly) …

Statistics: endogeneity Read more »

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