Monday, November 01, 2021

The Most Fun You Can Have With $100

Micro-financing makes seed capital available to poor people who want to start their own business but simply cannot afford to get the started. 

The opportunity to rely on themselves, to think realistically of a day when poverty will be a thing of the past for themselves, their families, and possibly their communities, as well, is an enormous blessing for all concerned.

None of this happens easily, of course. Much hard work and dogged determination will be required to make these micro-businesses into growing, thriving, profitable success stories.

But most of these dreams do, in fact, come true.

As the business owners get to work, and start seeing their labors bear fruit, beliefs in scarcity and the inevitability of poverty start evaporating. These outcomes would be impossible without the initial loan of seed capital by small-scale venture capitalists like you and me.

That's where micro-lending site Kiva comes in.
Kiva brings together low-income would-be business owners in 70+ countries with small-scale funders to help make dreams real.

As a Kiva member, you deposit a fixed sum (say, $100) into your Kiva account, and then lend it out to one or more applicants applying for financial seed money to start their businesses. Would-be business owners post info about their themselves and their business aspirations to make it easy for funders to decided where to loan their money (country, type of business, picture of themselves, etc.).

Once the money you've loaned is repaid, it returns to your account, so you can lend it out again ... and again ... and again and again and again! Kiva boasts a 96% repayment rate (!), so your original investment of x dollars can easily have the impact of 5x or 10x or more!

Becoming an active Kiva lender is certainly one of the best ways to spend $100 and a half our every few months (and one of the most fun.)

Kiva is given the highest rating (for stars, 90%) by Charity Navigator:

Check out Kiva for yourself.

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Copyright © 2006-present: Christopher R. Borland. All rights reserved.

Friday, October 01, 2021

Mathematical Logic

The trunk of the tree of mathematics divides into two main branches: applied mathematics, and pure mathematics.

Applied mathematics is concerned with calculation. Getting the right answers. Building things. Making sure the probe lands safely on Mars, that the bridge can withstand high winds, that revenue will exceed expenses. Utilitarian math.

I've always been interested in pure mathematics: the study of numbers, purely, for no other reason. Useless math, in other words. Math for the sake of math, only. Utterly non-utilitarian math.

The purest of pure math is logic, the foundation of mathematics. Mathematical logic is "meta-mathematics," the software running the machine, the engine under the hood.

One my favorite undergrad courses was an upper-division class in mathematical logic. Not long ago, I decided to take out some old textbooks, and summarize what I'd learned decades ago. The result was a set of simple notes for doing "Truth-Tree" proofs, one my favorite class activities.

You'll find the notes here.

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Copyright © 2006-present: Christopher R. Borland. All rights reserved.

Wednesday, September 01, 2021

Secret Sauce

Standardized testing is an inescapable fact of academic life.

Unfortunately, many students receive low scores simply because they lack the necessary test-taking know-how, preparation tools, practice habits, or skilled instruction required to maximize scores on tests like the SAT and ACT.

Nowhere is this more evident than on the math sections of such tests.

Of course, mathematical ability is the best predictor of success on any math test, and many tutors use an entirely content-based approach in an attempt to quickly increase standardized test math scores. In most cases, however, this is a fool’s errand.

[Continue reading here.]

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Copyright © 2006-present: Christopher R. Borland. All rights reserved.

Sunday, August 01, 2021

I ❤︎ TurboScan

Scanning apps are nothing new, but when TurboScan came out more than 10 years ago, they were. TurboScan was a breakthrough, and quickly became a mission-critical app for busy professionals everywhere, and it remains so today.

I use TurboScan practically everyday, in my professional and personal lives. Making perfect color or black/white scans of important hard-copy receipts and documents (and then mailing them as pdf documents to myself or others) has become a crucial part of my workflow. In fact, I'm still discovering new features. Even without having bothered to teach myself the full range of its usefulness, Turboscan has radically changed and fundamentally improved the way I, and others I know, conduct business and teach online.

I've been thoroughly dependent on TurboScan nearly since its inception, and I'd be lost without it. I can't recommend it more highly.

You can find TurboScan in the Apple or Android App Stores. Both free and pro versions are excellent.

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Copyright © 2006-present: Christopher R. Borland. All rights reserved.

Thursday, July 01, 2021

ACT Mini-Tests

Mini-testing helps students discover the high levels of energy, focus, and discipline (pacing) required to maximize scores on the English, Math, Reading, and Science sections of the ACT. 

For each test section, students take shorter timed “mini-tests” containing a representative sample of questions in a fraction of the time proportional to the number of questions in the mini-test.

This exercise is a sprint! The goal is to push oneself, in short bursts to the very high level of focus and energy required to achieve a perfect score. Through trial, error, and increasing application of personal will, students learn to enter and eventually habituate the state of mind necessary to maximize their scores.

For example, an ACT math mini-test is created as follows:

From an official ACT test, the math section is printed. The student attempts to answer 1/4 of the questions in this section in 1/4 of the time allowed. Instead of completing an entire ACT Math section – which would require 60 minutes to answer 60 questions – the student has 15 minutes to answer every fourth question in this section: #1, 5, 9, 13, etc.

A bubble sheet is not used, but the standard marking system is observed (circling letters, writing large capitals under question numbers, adding “?” or “X” for guesses, etc.). The student uses an analog watch reset to exactly 12 o’clock to mark time

At the conclusion of each mini-test, students check their answers, critique their performance, and record insights. This material is then studied and reviewed thoroughly (reviewing notes and reworking incorrectly answered questions) before repeating the process. "Practice, critique, review, repeat!"

Below are standard time limits recommended for various ACT mini-tests:



English

One passage, 15 questions: 9 minutes

Math

Every 4th question, 15 questions (#1, 5, 9, 13, etc.): 15 minutes

Reading

One passage, 10 questions: 8 minutes 45 seconds

Science

One passage, 6-7 questions: 5 minutes 50 seconds

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Copyright © 2006-present: Christopher R. Borland. All rights reserved.