explanation

On learning languages

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Spanish, Russian, Java, Python

We use “language” for a misleading variety of things.

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Examining the data

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How science is done (II)

How closely can you look at your input?

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A personal kind of astronomy

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How science is done (I)

We look at an extraordinary data set.

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Science vs. technology

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Not always on the same side

Even for scientists, the March of Progress is not always a good thing.

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Objectives of teaching

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High and low

We find challenges at each end of teaching.

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A special time?

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Patterns in the years

Some applied numerology. . .

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The portfolio review

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Going through the archives

Why is it that we almost never look back properly?

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Mathematics and craftsmanship

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Unexpected moments

Students can learn things we don’t think we’re teaching.

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A stone in the sidewalk (II)

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millstone set in the sidewalkRepurposed art

We muse on something outside of our area of expertise.

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A stone in the sidewalk (I)

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millstoneRound, grooved and underfoot

Why is this strange object in the Alexandria sidewalk?

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