Friday, December 2, 2016

June 2016: Pert, Pascal's Triangle, Sequences...


(from June 27, 2016)

"A simple progression"


Given these 3 consecutive terms from an arithmetic sequence, what is ?  What are the 3 terms?
3x + 4, 4+ 3, 6- 2

SOLUTION and more math questions..


(from June 24, 2016)

"Pascal's Triangle"




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(from June 3, 2016)

"Pert"








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"


ANSWER


(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?

ANSWER


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

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(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?

ANSWER


(from April 6, 2016)

"Mad Libs"




(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?

ANSWER

(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...

ANSWERS



(from March 22, 2016)

"Brackets"




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(from March 21, 2016)

"Rhombus Height"



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

ANSWER



(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


Answer



(from February 25, 2016)

"I Conic Figure"




(from February 18, 2016)

"Schoolhouse Rock"




Follow the Math Guy's weekly webcomic at 

Mathplane.com

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(from February 14)

"A Math Gift Wrapped"



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?



ANSWER




Find more math questions at the mathplane.com

also, at Facebook, Pinterest, and Google+





(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)

"Math Sadness"


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


(from December 18, 2015)

"Inequalities"





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

Also, at Facebook, Google+, and Pinterest





(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