Self-tutoring about using old computers: the tutor starts an exploration. Today I read of Lubuntu, a Linux-based OS. It’s self-described as having “very low hardware requirements.” I have numerous computers from the XP and Windows 7 era, which I am …
Self-tutoring about video production: the tutor shares some primary knowledge he just learned. For Christmas my son James got a camera meant to film action in first-person, the way so many parkour YouTubers do. We read its manual, bought the …
Tutoring English, you watch it evolve. The tutor comments on the common use of transition as a verb. I just checked two dictionaries: neither lists transition as a verb. Yet, since the late 90s, I’ve heard sentences like “I found …
Self-tutoring about roses and their relation to holidays: the tutor mentions white roses. I bought three roses for my wife for Valentine’s Day. The red and yellow were planned; the white was impulse. Red means love, yellow, friendship…what about white? …
Self-tutoring about relationships: the tutor reaches far back as he reflects about Valentine’s Day. Valentine’s Day can be surrounded with expectation, or hopelessness. It can sort people by whether they’re in a position to enjoy its meaning. Some people look …
Tutoring English, vocabulary is always interesting. The tutor mentions “missive”. A missive is a written message: a letter. It may be more formal than casual, perhaps urgent rather than entertaining. Source: Barber, Katherine et at. Oxford Canadian Dictionary of Current …
Self-tutoring about computer file types: the tutor mentions a case. I have a three-page pdf that is 700kB: in this case it’s 233kB per page. It includes images and text.
Self-tutoring about music: the tutor recalls a situation surrounding “More Love” by Kim Carnes. Many years ago, I heard a song I instantly knew was familiar, yet couldn’t identify. It played in a busy store; only strains of it I …
Tutoring math, definitions can be interesting. The tutor mentions surjection. In my previous post I mention codomain and its relation to the range. Now I continue with surjection. A function is a surjection, or surjective, if and only if its …
Tutoring math, definitions are important. The tutor mentions a couple. The codomain of a function is the set of its possible outputs, while its range is the set that actually is output. Let’s imagine you plan to measure the mass …