## Wednesday, October 19, 2016

### May 2016: Eyes, i-tunes, bookworms, and credit cards

(from May 28, 2016)

"i-Tunes"

(from May 21, 2016)

"Math Optometrist"

A Dilation Pupil....

Find the math guy's weekly sketch at mathplane.com

(from May 16, 2016)

"Bookworm question"

This (book) worm climbs up a wall at a rate of 5 feet per day. But, at night -- while it rests -- it slips back down 3 feet.
How many days will it take the worm to reach the top of a 30-foot wall?

ANSWER and other math questions in the spare parts section...

(from May 13, 2016)

"Inscribed and Tangent Figures"

(from May 9, 2016)

"Counting Digits"

(from May 5, 2016)

"Extra Credit Card"

(from May 1, 2016)

"Hiker Question"

A hiker walked around a circle. Then, he walked 10 feet further and walked around another circle.
If the total distance he walked was 2000 feet, what is the radius of the inner circle?

## Friday, October 7, 2016

### April 2016: Mad Libs, Frustrums, Passover, and the Sixth Sense

(from April 28, 2016)

"The Sixth Sense"

(from April 26, 2016)

"Quick Polynomial Question"

SOLUTION

(from April 21, 2016)

"4 Questions and Passover"

Find the math guy's weekly comic at mathplane.com

Pinterest

(from April 19, 2016)

"Probability and Dice"

A gambling parlor has a pair of "fair" dice where the probability of rolling a '6' with each die is 1/6...
And, the parlor has a pair of "weighted" dice where the probability of rolling a '6' with each die is 1/4...
Suppose you pick up a pair of dice and roll double sixes (12). What is the probability that you selected the "weighted" dice?
(and, the answer is not 1/2!!)

Solution and other probability questions.

(from April 13, 2016)

"Frustrums"

(from April 10, 2016)

"Hoops and Trig"

Two players stand on a basketball court.

The angles of elevation from the foot of each player to the 10' high basket are 40 and 50 degrees.
What is the distance between the players?

(from April 6, 2016)

(from April 1, 2016)

"Distance Rate question"

Easy distance/rate question....
Two planes depart at the same time...
Plane A leaves NY and flies at 400 MILES PER HOUR toward LA.
Plane B leaves LA and flies at 450 MILES PER HOUR - thanks to a tailwind - toward NY.
(Assuming NY and LA are 2500 miles apart,) when the planes meet, is Plane A or B closer to NY?﻿

(Happy April fool's Day!)

## Monday, August 22, 2016

### March 2016: March Madness, St. Patrick's Day, and the Twilight Zone

(from March 29, 2016)

"Pyramid Schemes"

(from March 24, 2016)

"Math Notation Puzzle"

An exercise for Algebra 2, Trigonometry, and Pre-Calculus students...

(from March 22, 2016)

"Brackets"

Follow the weekly math comic at

Pinterest

(from March 21, 2016)

"Rhombus Height"

The diagonals of a rhombus are 6 and 8.
What is the height?

(from March 12, 2016)

"Pi and St. Patrick's Celebration"

(from March 7, 2016)

"Circles and Arc Length Question"

ANSWER and other geometry questions at the mathplane site..

(from March 3, 2016)

"The i-light Zone"

## Friday, August 19, 2016

### February 2016: A Few Good Men, Awards, Schoolhouse Rock, and boiling eggs

(from February 28th, 2016)

Logarithm Question

(from February 25, 2016)

"I Conic Figure"

(from February 18, 2016)

"Schoolhouse Rock"

Follow the Math Guy's weekly webcomic at

Mathplane.com

Pinterest

(from February 14)

Inside a rectangular box, there is a 4 kilogram gift for my friend.
If the dimensions of the box are .05 decameters by 1 meter by 80 centimeters, then how many square meters of paper will I need to wrap the box?

(from February 11th, 2016)

"A Teacher's Pet"

A doggone minute in the classroom....

(from February 3, 2016)

"A Few Good Math Students"

(from February 1, 2016)

"9-minute egg riddle"

You're a cook at a restaurant in a quaint town where clocks do not exist.
You have a 4-minute hourglass timer, a 7-minute hourglass timer, and a pot of boiling water.
A regular customer orders a 9-minute egg, and you know this person to be extremely picky -- disappointed if you overcook or undercook the egg, even by a few seconds!
Can you prepare the egg in exactly 9 minutes (using the hourglasses)?

SOLUTION and more math questions in the spare parts section at mathplane

## Friday, June 17, 2016

### January 2016: Gauss, Proofs, Peace, Money, Football and the wheel

(from January 27, 2016)

"Re-inventing the Wheel"

(from January 24, 2016)

"Woodpecker math question"

A woodpecker is perched up against a 20-foot pole, pecking away!

Eventually, it chips away enough of the wood that the pole cracks, buckles, and folds over: the top of the pole landing on the ground 12 feet from the bottom of the pole.
Undeterred, it stands on the top and continues pecking away!
How high off the ground is the woodpecker?

ANSWER and more questions at the mathplane site

(from January 21, 2016)

﻿"Football x's and o's"

Combining physical Ed and Math Departments...

(from January 17, 2016)

"\$end More Money"

If each letter represents a unique number between 0 and 9, how much money?

Find more math questions at the mathplane.com

(from January 12, 2016)

"Peace-Wise"

(from January 7, 2016)

"Flawed Proof"

If  a  =  b,  then  2 = 1 ???

What is wrong with this proof?

(from January 2, 2016)

"Gauss Jeans"

## Friday, April 8, 2016

### December 2015: Spelling Bees, Roulette, Inequality, Oscar

(from December 23, 2015)

Oscar (4/00 - 12/15) -- RIP

(from December 18, 2015)

"Inequalities"

Find the math guy's weekly comic at  mathplane.com

(from December 15, 2015)

"Concentric Circles"

Given: 2 concentric circles. The chord of the outer circle is tangent to the inner circle.
If the length of the chord is 70 units, what is the shaded area (i.e. the ring)?

SOLUTION

(from December 10, 2015)

"Roulette in Heaven"

where the probability of winning is 1...

(from December 3, 2015)

"Math Spelling Bee"

Check out mathplane  tutoring resources at

TeachersPayTeachers  and teaching content at TES

## Sunday, January 24, 2016

### November 2015: Unhappy Hour, 13, Birthdays, and IOU

(from November 29, 2015)

"Sequence Quick Question"

(from November 25, 2015)

"Debt and Lending (in the math world)"

(from November 23, 2015)

"Angle Fan"

Can you find the sum of the angles?

(from November 19, 2015)

"Vector Birthday Party"

Follow the weekly math comic at

Pinterest

(from November 16, 2015)

"Algebra Question"

Find more math questions in the spare parts section at mathplane.com

(from November 13, 2015)

"13 on a Friday"

A Superstitious Figure!

(From November 5, 2015)

"Bottles of Beer on the Wall"

(from November 2, 2015)

"Average Rate of Change" -  Topic for discussion