Friday, December 19, 2014

August 2013: 1/2, burning ropes, architects, radical, back to school, and linear regression

(from August 29, 2013)

"Linear Regression"

Find the weekly math comic at mathplane.com

(from August 22, 2013)

"School Supplies"

(from August 15, 2013)

SOLUTIONS are in the spare parts section at Mathplane.com

(from August 9, 2013)

"Building Materials"

Working with an Arc-itect...

(from August 8, 2013)

"Burning ropes and measuring time"

Suppose you have a box of matches and ropes of different lengths. EACH rope takes EXACTLY ONE HOUR to burn through.

Using logic, you could use the ropes to measure units of time. For example, to measure 30 minutes, you could light each end of a rope simultaneously. (because the burning ends meet halfway after 30 minutes.)

Question: How could you measure 45 minutes?

(from August 1, 2013)

"Definition of 1/2"

Thursday, December 18, 2014

July 2013: Dance Lessons, Hitchcock, Movie Script, and the SAT in Hell

(from July 30, 2013)

"SAT in Hell"

Well, I'll be damned!  That's a tough test...

SOLUTIONS to this test are in the spare parts section...

(From July 20, 2013)

"Movie Projection"

The Math Guy pitches his geometry movie idea:  "The 3-way", featuring a love triangle...

6 more triangle questions:

1) What is the name of a triangle where all sides have different lengths?
2) A triangle has sides of length 8 and 13. What are the possible lengths of the 3rd side?
3) Two sides of an isosceles triangle are 5 and 7 feet. What is the perimeter of the triangle?
4) DEF is a right triangle. If angle E is 37 degrees, what are the measures of D and F?
5) Where do the altitudes of a right triangle intersect?
6) If the 3 altitudes of triangle ABC intersect outside the triangle, what type of triangle is ABC

SOLUTIONS and more triangle content are at mathplane.com

(from July 13, 2013)

"Hitchcock's 39 Steps Function"

math comic #94:  Alfred Hitchcock presents...

(from July 4, 2013)

"Dance Lessons"

At Murray Arthur's Dance Studio...

Can you complete these sequences?

(from July 1, 2013)

"44"

Can you solve these 4 math problems about 44?
1) List all the factors of 44
2) Express 44 in Roman Numerals
3) Write 44 in Base 5
4) ("The Enforcer" was made in 1976) Using each number 1, 9, 7, and 6 and any math symbols and/or operations, write an equation that equals 44.

Answers in the spare parts section...

Tuesday, December 16, 2014

June 2013: Ellery Queen, Twitter, Frankestein, and Dirty Harry

(from June 27, 2013)

"The Enforcer"

Harry Callahan teaches math at Eastwood Prep

(from June 21, 2013)

"Teaching Experiment"

A monstrous task for Dr. Frank N. Stein

Find the weekly math comic at mathplane.com

(from June 13, 2013)

"Two Characters and a Tweet"

(from June 9, 2013)

"Ellery's Cousin"

Can you solve the "case of the 3 portions"?

visit the spare parts to see the solution

(from June 5, 2013)

"Recreation Area"

Math Quiz:  Three Area problems...  (a little bit of geometry and calculus)

The solutions and more math questions....