# Playful Math for Middle & High School

As our children (and their parents!) play around with mathematical ideas and the relationships between them, we develop deep understanding that is strong enough to support future learning.

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Invent a new sequence. Give it a name. I’d love to hear how you explain it!

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### Math with Many Right Answers

Building Linear Functions - Authentic Math Task Lesson Reflection good for algebra 1 or algebra 2

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#### HSF.BF.A.1 Building Linear Functions - Authentic Math Task Lesson Reflection Great blog post for a real world connection to linear functions.

### Mrs. E Teaches Math

How can we divide it evenly, so we each get a fair share? How big is your piece?

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#### "An infinity cake" activities that teach pre calculus to kids

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Math game and logic puzzle from Henry Dudeney’s classic book, The Canterbury Puzzles.

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#### 31-Game Math Concepts: addition to thirty-one, thinking ahead. Players: best for two. Equipment: one deck of math cards. How to Play Lay out the ace to six of each suit in a row, face up and not overlapping, one suit above another. You will have one column of four aces, a column of four twos, and so on—six columns in all. The first player flips a card upside down and says its number value. Players alternate, each time turning down one card, mentally adding its value to the running total, and saying the new sum out loud. The player who exactly reaches thirty-one, or who forces the next player to go over that sum, wins the game.

### Math Game: Thirty-One

Real world problems. Great example...how many movies can you see in one day, justify answer with viable argument.

### Lessons | Robert Kaplinsky - Glenrock Consulting

April 2015 Math Calendar: Each date is a math puzzle.

#### Cool Website

#### April Math Calendar at Let's Play Math - Cool Website!!

Memorizing area formulas is a rite of passage for adolescents. It’s fun and useful—you know, like acne...

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The Secondary Classroom can be fun too.....: Formative Assessment Lessons - They are more fun than they sound!

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#### High school math activities

#### This website has project ideas for all of secondary math.

#### The Secondary Classroom can be fun too.....: Formative Assessment Lessons - They are more fun than they sound! Quadratic Functions

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Math Manifesto: From the very beginning of my education, I can do these things to some degree. And I am always learning to do them better...

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#### Math Manifesto - inspiring ideas to challenge those who are not afraid of math concepts, but curious and wanting to know more. I especially love : "I ask q's to clarify things I don't understand." If you hate math, but love Brenee Brown. This manifesto is for you.

### The Math Student’s Manifesto

Slip into your workout clothes and pump up those mental muscles with the Annual Mathematics Year Game Extravaganza!

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#### Stick to your New Year’s Resolutions in 2015!

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#### Check out some of our favorite submissions from this week's Mashable Photo Challenge: New Year's Resolutions.

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### 2015 Mathematics Game

Hit Me! (Integers Math Game) Build understanding of negative numbers with this family-favorite game.

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#### Hit Me! (A Math Game) « Let's Play Math!

#### Hit Me! (A Math Game) One player (the dealer) shuffles the math cards and deals one card face down for each player, beginning with the player on his left and proc...

#### Hit Me! (Not a game of cats hitting cats, but a card game which sneakily reinforces mental math.)

#### Math Game Instructions: Hit me. Practices addition, subtraction, negative numbers, mental math, absolute value

#### Hit Me! (A Math Game) like 21, each player gets one card face down, peeks at their card, then decides if they want to hit, or stay. black cards are added to your sum, red cards are subtracted. try to get the highest score in 4 hits or less.

### Hit Me! (A Math Game)

War: what is it good for? Printable cards for Trig and Logarithm War game from The Pai Intersect.

#### Printable Cards

Age 12 ~ Geometric Drawing: These forms were created using a straight edge and compass and are based on different number patterns.

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Complex Numbers and Story Time - John and Betty's Journey into Complex Numbers - Using "story time" in high school

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### Mrs. E Teaches Math: Complex Numbers and Story Time

Capture/Recapture - Use proportions to show how math is used in real-life.

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#### Ms. Milleson's 7th Grade Blog: Capture/Recapture - Proportions Math Activity

Algebra 2 Foldables Made By My Students: "Their assignment was to create 3 interactive notebook pages over 3 topics we studied this year. Please note that these were all produced by my students, and there are several small mistakes sprinkled throughout them. If I do this project again, I think I will have students submit a rough draft for me to review before they complete their final drafts...."

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### Math = Love: Algebra 2 Foldables Made By My Students

ON THE SHOULDERS OF GIANTS by zenpencils: Science All-Stars! Click through for details about each scientist.

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#### Zen Pencils 152. ON THE SHOULDERS OF GIANTS: The science all-stars poster

#### Science All Stars Poster- Oh my gosh- Anna Butler you have to put this in your classroom when you are a science teacher!

#### A cartoon compilation of famous scientists.

#### ON THE SHOULDERS OF GIANTS by zenpencils: Science All-Stars! Click through for details about each scientist. #Illustration #Cartoon #Scientists

### 152. ON THE SHOULDERS OF GIANTS: The science all-stars poster

Pondering Large Numbers: "Human intuition serves us well for the numbers we normally deal with from day to day, but it has a hard time with numbers outside our experi..."

#### Hard Time

### Pondering Large Numbers

Egyptian Geometry and Other Challenges: Would you like to study “the knowledge of all existing things and all obscure secrets”? That is how Scribe Ahmose (also translated Ahmes) de...

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### Egyptian Geometry and Other Challenges

20 Mathematicians Who Changed The World: Unfortunately, mathematicians often get little recognition for their contributions to history. We're changing that right now...

#### Black Hole

#### Pierre-Simon Laplace---The marquis de Laplace was pivotal in the development of mathematical astronomy and, most significantly, statistics. He was one of the first to propose the existence of black holes; one of the central forces behind systematizing probability theory, laying the groundwork for what is now termed Bayesian statistics; one of the first to study the speed of sound.

### 20 Mathematicians Who Changed The World

Graphing Polynomials Project: "Create your personal birthday polynomial. Use the digits of the month, day and 4 digit year of your birth – in order – as the coefficients of the polynomial..."

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#### A GREAT Secondary Math Blog!

#### The Secondary Classroom can be fun too.....: Graphing Polynomials Project

Mr Collins Mathematics Blog: Constructions resources using 'Comic Life' --- I love these guides to geometry constructions. So cool!

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Angle Sum Theorem: It's not a rigorous proof, but it's a start. Helps students internalize the principle that the angles of a triangle = a straight line.

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#### Cool way to teach Angle Sum Theorem promotes understanding and not just memorization. B*

#### Teaching in Special Education: Angle Sum Theorem

#### Triangle sum thereom

### Teaching in Special Education: Angle Sum Theorem

Interesting hands-on applied math problem.

#### Middle School, Schools Students

#### Maths Problem: Connect the towns solution (Motorway Problem). This would be a good math problem to give to a middle school student then show them the video after.

Proofs without words: two algebraic identities about series. These are very beautiful with beads or other pretty counters. #MathWithoutWords