How to Keep Your Child Challenged in Math Dr. Raj Shah
[email protected] Thursday, November 3, 11
What is Mathematics?
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1 4 + 3 7 secant
Z
3 dx
x
s
x s o c x n i s 2 = x in 2
mixed number This is why most = i⇡ b 1=0 + e + a people think they 61 ⇡ r 2 don’t = polynomial like math! 4 6 44 = 2
2
c
2
x 2 + 4x
432
7⇥ Thursday, November 3, 11
6 5 8=
117 = 3
15
+ 17
prime
+5=0
8 2÷
51
perimeter
Traditional “Definition” • Numbers
• Trigonometry
• Addition
• Statistics
• Subtraction
• Algebra
• Variables
• Geometry
• Calculus
• Formulas
• Division
• Equations
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Mathematics is the Art of Explanation Paul Lockhart, Mathematician
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•
“If you deny students the opportunity to pose their own problems,
•
to make their own conjectures...,
•
to be wrong,
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to be creatively frustrated,
•
to have an inspiration,
•
•
and to cobble together their own explanations and proofs, you deny them mathematics itself.” -- Paul Lockhart, Mathematician
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A Different Kind of Math Problem
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Problem: Color this Map using the fewest colors
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Problem: Color this Map a simpler problem
3
2 1
2
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1 3
Problem: Color this Map How can you extend this problem?
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Problem: Color this Map • No mapmaker was ever limited to just 3 or 4 colors of ink!
• Yet, mathematicians studied this for fun for over 100 years!!!
• In 1976, “Four Color Theorem” was finally proven.
• There’s a Map Coloring Algorithm... Thursday, November 3, 11
Why Did We Just Spend 5 Minutes Coloring Maps?
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Mathematical Thinking • Experimenting
• Strategizing
• Conjecturing
• Reasoning
• Estimating
• Proving
• Simplifying
• Connecting
• Organizing
• Wondering
• Inventing
• Imagining
Thursday, November 3, 11
Mathematical Thinking • Experimenting
• Strategizing
• Conjecturing
• Reasoning
• Estimating
• Proving
• Simplifying
• Connecting
• Organizing
• Wondering
• Inventing
• Imagining
Thursday, November 3, 11
Would You Rather Know How to Think or How to Compute? Which one do you think employers value?
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Traditional Definition • Numbers
• Trigonometry
• Addition
• Statistics
• Subtraction
• Algebra
• Calculus
• Formulas
• Division
• Equations
This is mathematical knowledge • Variables • Geometry
Thursday, November 3, 11
Mathematical Thinking • Experimenting
• Strategizing
• Conjecturing
• Reasoning
• Estimating
• Proving
• Organizing
• Wondering
• Inventing
• Imagining
This is mathematical thinking • Simplifying • Connecting
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Knowledge is Important
Thinking is Essential
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Knowledge Builders • Flashcards • Worksheets • Workbooks • Math Drill Websites
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How much fun is this?
WARNING: Overuse may be hazardous to attitude and interest
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Would this be more fun?
Can you color this map with just 3 colors? or 4? or 5?
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School will teach the content Focus on mathematical thinking at home
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Creating a Mathematical Culture at Home
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Cultural Belief #1 Problem solving is challenging and fun
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Cultural Belief #2 Failures are opportunities to learn
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Cultural Belief #3 Celebrate effort regardless of outcome
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Cultural Belief #4 Curiosity is always encouraged
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Cultural Belief #5 Better to understand than memorize
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Cultural Belief #6 Mental math trumps paper and pencil
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Cultivate A New Attitude • Perseverance - “I refuse to give up.” • Confidence - “I can do it.” • Intuition - “I have an idea...” • Curiosity - “I wonder...”
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Perseverance Reward effort not natural talent
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Confidence Built through incremental successes (Be less helpful)
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Intuition Do lots of problems (there’s no shortcut)
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Curiosity Extend problems and always ask why
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Tools for a Mathematical Culture
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Leverage What Kids Already Enjoy Play Problem Solving Competition Exploration
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Classic Games • Chess • Go • Backgammon • Dice games - Yahtzee, Shut the Box, ... • Card games - Rummy, Cribbage, ...
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Tip: Verbalize your strategy
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New Games • Think Fun • Rush Hour, Chocolate Fix, Tilt, Solitaire Chess... • Set • Gamewright • Loot, Zeus on the Loose, ... • Qwirkle • Blokus Thursday, November 3, 11
Tip: Establish a Family Game Night
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Puzzles • Brain Teasers • Logic puzzles • Sudoku • KenKen • Kakuro • ... Thursday, November 3, 11
How Many Squares on a Chess Board?
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Puzzle Sites • puzzles.com (try family brainstorms) • figurethis.org • nrich.maths.org • mathpickle.com • nikoli.com • krazydad.com Thursday, November 3, 11
Tip: Set aside regular “puzzle time” just like “reading time”
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Everyday Life • Calculate recipe quantities • Estimate travel time • Calculate sports statistics • Estimate grocery bill • Compute taxes, sale prices, etc.
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Tip: Challenge each other to make estimates.
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Extra-Curricular • Math Olympiads (4th - 6th) • MATH COUNTS (6th - 8th) • Robotics (3rd+) • Computer Programming
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Books • Becoming a Problem Solving Genius – Edward Zaccaro
• Creative Problem Solving – Dr. George Lenchner
• Math Oympiad Contest Problems
(Volume 1 & 2) – Dr. G. Lenchner
• Anything by Greg Tang Thursday, November 3, 11
Parent Book List • A Mathematician’s Lament - Paul Lockhart
• Mindset - Carol Dweck • Drive - Dan Pink • Bounce - Matthew Syed
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Presentation Notes • MathPlusAcademy.com/challenge • Download PDF of presentation • Sign up for our eNewsletter to get more articles and useful tips.
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If You Enjoyed This... • Field trips • Math Day (like COSI on Wheels) • Math Night • PTO partnerships • MathPlusAcademy.com/outreach • Games-a-palooza: Sat. Dec. 3, 2-5pm Thursday, November 3, 11
Q&A
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