## Can an Endless String of Numbers have a Sum?

If you tutor math 12, you’ll have come across the premise 1 + 1/2 + 1/4 + 1/8 +…. Before we go any further, a reminder on how to multiply fractions: (2/3) x (4/5) = 8/15.  You just multiply the …

## Julius Caesar: Cassius, V,iii

Caesar, thou art avenged, even with the sword that kill’d thee. –Cassius, Act V, scene iii, Julius Caesar In Act V, scene iii, of Julius Caesar, Cassius commits suicide.  Having been misled that his dear friend Titinius is slain, Cassius …

## The Semicolon

Welcome back. While tutoring English, punctuation is a constant concern.  Using a variety of punctuation leads to sentence variety – something that always impresses English teachers. The semicolon can be used in many ways, but its simplest use is to join two short, but complete sentences. …

## Divisibility by 3, Divisibility by 9

During math tutoring, no matter what the level, the front line is arithmetic. In that spirit, here’s a handy trick to tell if a number is divisible by 3: Add up the digits.  If the sum is divisible by 3, then so …

## French: passé composé, imparfait, and plus-que-parfait: when to use them.

Hello: Well, today I thought we’d discuss some French:  specifically, the passé composé, the imparfait, and the plus-que-parfait.  In what situation do you use each? The passé composé is the first way to express the past tense that I learned in high school.  It …