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Blog Archive

2024
February
Squares of Even Numbers
2023
September
FInding Factors without a Calculator
June
Double-Dactyl Poetry Form
2022
July
More about the Monty Hall Problem
2020
October
Extraneous Solutions
May
Logistic Functions and Coronavirus
Factoring Rules for Higher Degree Polynomials
April
Word problems in a time of pandemic
Articles on Archive.org
Report: Fake News Sites Are Good at This
Weather Predictions and Total Snowfall Amounts
Four Whole Numbers Problem
Meter of Geordie Ballad
Logarithmic Scale Graphs and Linear-Scale Graphs
March
Coronavirus and Population Percentages
Coronavirus, Exponential Growth and Statistics
2019
December
Christmas Ornaments
January
Stressed Word in 'Are you okay?'
2018
November
Tricks for Factoring Three Digit Numbers
September
Rationalize a Denominator with a Cube Root
July
Why do we have names for numbers?
June
Dependent and Independent Events
May
Flouride in Toothpaste and Water
Single Syllable Words and Poetry
April
Rabbits, Elephants, Monkeys and Parrots
Change in Y over Change in X
Finding a Quadratic with Given Roots
March
Regrouping and Subtraction
February
Probability and an Infinite Set
Overloading Functions in PHP
Discontinuous Functions
Rounding 0.5
Radicals inside Radicals
January
Amount set aside for the poor and needy
Additive Color and Subtractive Color
2017
December
A Christmas Rebus Puzzle
Different Factorizations of Algebraic Expressions
Distributive Property and Star Operations
Donald Trump in the Bible?
Probability of an Event NOT Happening
Slope of Stairs
Why Do Onions Make You Cry?
Rationalizing Denominators - Advanced
Why Use Significant Figures?
November
A Christmas Gift, A Christmas List
How to Cite a Website
Imperfect Musical Instruments
Exterior Angles of a Quadrilateral
Similar Triangles and Ratios
Why Does Cramer's Rule Work?
Math and Music - What's the Connection?
October
Why Radians? Why not Degrees?
Cubic Yards and Cubic Feet
Least Common Multiple with Variables
Hypotenuse and Altitude
Logarithms and Geometric Sequences
Fractional Inequality
Linear, Square, and Cube Problem
September
Ambiguous Division?
Camel through the Eye of a Needle
How Do You Do Scientific Notation?
Hurricane Passage - Part Two
Hurricane Conspiracies
Approximation for the Golden Ratio
How Long Until Hurricane Irma Passes?
Working Together Problems
May
Finding a Term Directly
Central Angles and Inscribed Angles
April
Factoring Higher Degree Polynomials
Graphemes for Letters and Numbers
Listening for Iambic Pentameter
March
von Neumann Machines
The Ants Go Digging
Finding Fun Math Facts
Another Bad Math Problem
King Henry Doesn't Usually Drink Chocolate Milk
Terza Rima Explained
Mechanical Advantage Explanation
Eulogy for the Page Eight News Story
Remembering Sixth Grade
February
Fish in the Aquarium
The Perfect Valentine for Mathematicians
Proof of the Law of Sines
January
A Diophantine Base Problem
Sum and Product Factoring with Complex Numbers
I Wasn't Taught PEMDAS
Divisibility Rule for 19
2016
December
Snowing To Beat the Band
Penny a Day Challenge
Happy New Year 2017
Factoring: Finding the Right Grouping
Icosahedral Christmas Ornament
A Christmas Graph
Hexadecimal in Programming
Things that are Horizontal
Flying by the Seat of your Pants
Bowling Lane Lubricant
Vinculum and BODMAS
Borrowing and Repaying Problem
November
Force of Gravity in a Spherical Shell
Negation and compound statements
The Murky Swamp of Probability
Monty Hall's Probability Question
E-Mail Attachment from a Stranger
Six Times Six, Five Times Seven
Quadrilateral Exterior Angles
Geometric Sequence - Fourth and Second Terms
These Sites Had One Job to Do - and They Broke the Internet
Means are Between?
I Am a Good Writer
Acceleration and Velocity
October
Cosine of 36 Degrees
Accents in English Words
Popular Vote vs Electoral College
How many diagonals are in decagon?
September
Time Signatures in Music
Statistics Calculators
Sixth Degree Polynomial Factoring
Favorite Song
Stressed Syllables and Context
Irrational Numbers - Repeating or Terminating?
Ice Wedging - What Is It?
Square Root of Two is Irrational?
Why Are Mountains Triangles?
August
Roll the Dice!
Why Do We Simplify Radicals?
Entrapment Difficulty
Father of Lights
July
Highly Composite Numbers
June
Why Do Extraneous Solutions Occur?
Good Math Problems, Bad Math Problems
Perfect Squares and the Number Four
Hard vs. Unsolvable
Factoring, Algebra and Mental Math
How Many Palindromic Perfect Squares
Palindromic Squaring
Place Value in Base Three
Complex Numbers and Roots
Manipulating Complex Numbers
How Does CIS Notation Work?
Finding the Fun in Math
May
Richter Scale - Adding One Half
Make a Negative Number without Using Negatives
Zero Degrees Today, Twice as Cold Tomorrow
Math Questions with Solutions
Multiplication and Division in Order of Operations
April
An Arithmetic Operation Puzzle
A Surgical Riddle
March
Should I Stir My Hot Chocolate?
Iron Rod, One Light Year Long
Three Digit Number with Reversed Digits
Rick Lax State Video - How does he do it?
A farmer had 30 cows and 28 chickens
Encoding Colors, Numbers, and Graphemes
Down with Click-Bait!
The Oxford Comma
The sum of three numbers is equal to their product
Average Number of Bones
Bad Math in Politics
Bases and Composite Numbers
Why is Zero Factorial Equal to One?
Patterns in Math
Adam and Eve - Population Question
February
Converting Miles per Hour to Miles per Minute
Biggest Numbers, Smallest Numbers
What is a 'Star' Operation?
How to Say 'I Love You' with Math
Trojan Horse - A Program That's More Dangerous Than It Looks
Flower Problem - Can You Solve This?
Three Men, a Bellboy, a Hotel Owner, and Missing Dollar
Software: Two Tier Architecture And Three Tier Architecture
Einstein's Function?
The Square Problem - Can You Solve It?
Solve if You Are Genius
Triangle Similarity and Congruence
Can X and Y Have the Same Value?
HTTP and HTTPS - What is the difference?
Leap Year! What is it Good For?
Internet Diameter - What Is The Size of the Web?
Slow Thinking - Answers to the 'Harvard Quiz'
Is This How Numbers Got Their Names?
How to Recognize Stressed and Unstressed Syllables
PEMDAS Confusion?
Apples, bananas and coconuts
Presidents' Day - where does the apostrophe belong?
January
Finding Terms of Geometric Sequences
Codes, Riddles, Secret Messages
You Don't Need All Those Addition Facts
Straining at a Gnat, Swallowing a Camel
Vortex Eleven: Skipping One
Highest Exponent, Number of Solutions
How Many People Believe in God?
Converting Letters to Binary
Only One Factor Tree?
2015
December
Happy New Year 2016!
Why Can't I Divide by Zero?
Why does cryptology exist?
Telescoping Sequences/Series
Upper Case Pi Symbol?
Fly Swatters and Sledgehammers
Tealight Space Heater
November
The Himalayas vs. Himalayas
Analyzing Poetry
SSL and Google Analytics
Trapezoids and Perpendicular Sides
The Tape Measure Trick
Make a Factor Tree
Infinite Product Question
Why Did You Create This Game?
October
Gentleman on the Sidewalk
Avoiding Subtraction Regrouping
Customized Word Searches
Finding the Topic Sentence
Sound Bite Conversations (Professor Judy Haiven Letter)
September
Multiplication - The Japanese Way?
Common Core Subtraction
Colors and Emotions
Trapezoid Angles
August
Five Fives Puzzle
Matchstick Puzzles
What is Estimation?
Three over Two X
BODMAS
Two Moons in August?
July
Secret Word Date
Stressed and Unstressed Syllables
Keys and Treasure Chests
Diagonals from a Vertex
Infinite Geometric Series Sum
Finding the first term
Probability of Winning
May
Word Usage, Grammar, Spelling
March
Correlation vs Causation
2014
July
Compliment vs. complement
Adverbs and Adjectives - What's the Difference?
June
What is an Axiom?
They're and Their
2013
September
Email File Attachments and Viruses - what is safe to open?
April
Credit Card Numbers in an Email Message - A Big No-No!
March
AntiVirus Software Subscription Renewal
Virus Definitions - They're like antibodies.
2012
July
Smilies In Email Messages - Meanings of Emoticons
January
History Of The Internet: ARPANET and Department of Defense
2011
October
Online Scams, Questionable Businesses - Trust and Reputation
March
Email Sender Forgery And Pornographic Spam
2010
August
Email Etiquette - using all caps is bad form
March
Change of email address - pros and cons
2009
December
Internet shorthand - interpreting internet slang
Bobby - Web Content Accessibility Guidelines Testing
November
E-mailing file attachments with 'risky' file extensions
April
PEMDAS Confusion (Please Excuse My Dear Aunt Sally)
2008
October
Padlock Icon on a Secure Website
Getting Web Hits, Pay Per Clicks, and Phony SEO Offers
September
ALT Tags in HTML Pages : When to use them
2007
August
Meta Tags And Web Page design: Description and Keywords
May
Child Membership on Message boards, Educational Websites
April
Children, Concerned Parents, and Internet Usage
2006
November
Email addresses hidden behind membership requirements
October
Fast Inclusion In A Search Engine
July
Formatting HyperLinks for optimized web pages
Automated Website Promotion Tools - Blessing or Curse?
Archive

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