Perhaps lifestyle requires more tutoring than anything else – for me, anyway. The tutor relays his experience phone case shopping. Yesterday I got schooled on how to buy phone cases. I’m interested to share what I’ve learned. We bought my …

Lifestyle, mobile phones: phone cases Read more »

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Monitoring nutrition involves constant self-tutoring. The tutor reflects about nutella®. I first encountered nutella® (spelled lower-case on the jar, so I’ve spelled it the same) decades ago. I had a Dutch girlfriend who ate it; I never liked it. (She …

Lifestyle: nutella®: mixed emotions Read more »

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The tutor answers a question that brought someone to his site. These days, Oracle Tutoring gets between 5000 and 6000 distinct visitors per month. Looking over the raw log entries of how some visitors arrived, I saw an inquiry yesterday …

Financial math: can time be negative? Read more »

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The tutor continues exploring annuities.   In my previous post I introduced the idea of an annuity with an example. That example had each payment at month’s-end; hence, it was an ordinary annuity. With an annuity due, the payment is …

Financial math: ordinary annuity versus annuity due Read more »

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Financial math awaits many students.  The tutor introduces annuities. From the point of view of a typical consumer, an annuity is the reverse of a loan.  The consumer becomes the lender, while the institution pays them back, often with monthly …

Financial math: annuities, part I Read more »

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A lifetime ago, the tutor studied financial planning.  That’s when he got acquainted with the HP-10B. Of the financial calculators I know, the Hewlett-Packard HP-10B is potentially the easiest to use. One feature of particular value to anyone in financial …

Financial math: interest rate conversions on the HP-10B Read more »

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When the tutor was in high school, a course called Consumer Education was mandatory. The beautiful, energetic high school students of today will, sooner or later, be workers. They will gain one kind of freedom at the expense of another. …

Consumer Education: the Consumer Price Index Read more »

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