The tutor shares another neighborhood find. I’ve noticed, over the years, maple trees that have dark red, or purple, leaves. For some reason, I imagined I knew what kind they were, but had just forgotten. Today I noticed another one, …

Lifestyle: plant identification from field guide: Norway maple Read more »

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The tutor offers the simple way to return from the “P” or “PEN” state on some Sharps. Sometimes a student will bring me a Sharp calculator: “It’s not working…there’s that ‘P’ on the screen.” In another case, the screen might …

Calculator usage: how to get rid of “P” or “PEN” on some Sharps Read more »

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