# More Math! Resources: All Ages

For those of you who can't wait until the next National Math Festival, we invite you to explore the wonder and beauty of math with these puzzles, games, books, videos, and other mathy treats for all ages. Have a suggestion for us? Share with @natmathfestival on Twitter or send to mathfestival@msri.org. New resources are added each month!

#### Learn & Explore

Estimation 180
Teacher Andrew Statel has created these visual exercises to help his students build their number sense. Give them a try and maybe you’ll be a ringer the next time someone asks you to “guess the number of jellybeans in the jar”!

To celebrate Pi Day, Wolfram Alpha created this generator – enter your birth date, or any number sequence, and the system will find the same consecutive sequence within pi!

How to Solve a Rubik’s Cube
This Think Maths guide to solving a Rubik’s Cube will take you through a simple method for solving a scrambled cube. Watching the videos will help you to learn a layer-by-layer solve, and the same solving method is outlined on the worksheets included, with appropriate diagrams. The method can be learned individually, or by whole class groups with teacher support.

The KnotPlot Site
Here you will find a collection of knots and links to explore, viewed from a (mostly) mathematical perspective. Nearly all of the images here were created with KnotPlot, an elaborate program to visualize and manipulate mathematical knots in three and four dimensions.

Lathisms (Latin@s and Hispanics in Mathematical Sciences)
Lathisms highlights the wide spectrum of research and mentoring contributions of Latin@s and Hispanics in different areas of the mathematical sciences.

The Mathematics of Juggling
Juggling has advanced enormously in recent decades, thanks in part to the mathematical study of possible patterns. The late computer scientist Claude Shannon was also an avid unicyclist, juggler and tinkerer. In the early 1980s, Shannon published the first formal mathematical theorem of juggling, and mathematicians have been fascinated ever since. You can find a great video about the math of juggling by National Math Festival presenter George Hart as well!

This site by four young, gifted, and black mathematicians was created to share the accomplishments of their mentors, colleagues, and friends. The mathematicians highlighted here have made significant contributions in research, mentoring, and teaching. This platform provides access to the diverse and dynamic community of black mathematicians.

NASA’s Modern Figures
The blockbuster film Hidden Figures, based on the book by Margot Lee Shetterly, focuses on the stories of Katherine Johnson, Mary Jackson and Dorothy Vaughan, African-American women who were essential to the success of early spaceflight. With these educational resources, NASA embraces their legacy and strives to include everyone who wants to participate in its ongoing exploration.

Personal Polynomial
The Mathematical Sciences Research Institute and the Global Math Project invite you to get your very own Personal Polynomial, the math formula that spells your name! Whether your name is three letters or 30, this magic machine can always find the equation that adds up to… you! As a special treat, your polynomial can be saved as an image to share with friends, family, and classmates. How does it work? Watch the videos to learn the secrets behind this equation.

When you take a digital photo, your camera measures the amount of red, green and blue light hitting each pixel, ranks them on a scale from 0 to 255 and then records those values as a spreadsheet. 2017 Festival presenter Matt Parker found a way to actually open digital photos as spreadsheets in Microsoft Excel or similar programs. Upload a photo and instantly download it as a real spreadsheet, and learn from Matt’s experiments!

The Scale of the Universe
Zoom from the edge of the universe to the quantum foam of spacetime and learn the scale of things along the way!

Tessellations.org
Tessellations are symmetrical designs which can fit together in repetitive patterns like simple jigsaw puzzles. These fill a surface, usually a 2D plane, without gaps or overlaps. Brick walls, tiled floors, and the honeycomb in bee hives are all tessellations. You can learn about and see tessellations made by pros and amateurs, both adults and kids, or submit your own designs.

Wild Maths
Mathematics is a creative subject, involving spotting patterns, making connections, finding new ways of looking at things and using what you already know in new contexts. Wild Maths has games, investigations, stories and spaces to explore, where there are discoveries to be made. Some have starting points, some a big question and others offer you a free space to investigate and develop as a mathematician.

#### Puzzles & Games

52 Master Pieces
An armchair treasure hunt puzzle contest overflowing with classic and original brainteasers, games, ciphers, puzzles, wordplay, and more. Free for everyone to enjoy!

Dots & Boxes
Two players take turns drawing lines to connect dots, and whoever closes a square gets to put their initial inside, and the player with the most claimed squares wins! Sounds easy? This classic pen and paper game, beloved by children, gets new strategic insights in this video featuring Dr. Elwyn Berlekamp, a mathematician and expert in combinatorial games like chess and Go. You can also learn about more combinatorial games including Amazons, Hackenbush, and more on Dr. Berlekamp’s website, including video tutorials.

NEW! Euclidea Geometric Constructions
This free mobile app and website bills itself as “The Largest Collection of Interactive Geometric Puzzles”. Euclidea is all about building geometric constructions using straightedge and compass, but it’s also a game that values simplicity and mathematical beauty. Find the most elegant solution — the one which is built in the least possible moves — and you’ll get the highest score.There are 120 levels to solve, ranging from very easy to very hard.

Imbalance Problems
These puzzles are made of squares, triangles, and circles suspended by bars and wires from a center fulcrum. We can tell that the shapes don’t weigh the same when both sides don’t balance – but can you order them from heaviest to lightest just by looking at each puzzle? Use the pictures as your clues and try these fun brainteasers!

Large Birds, Hungry Tigers, and Other Logic Puzzles
Raymond M. Smullyan, a mathematician, often met people who said they hated math, and yet they loved his logic puzzles. Can you solve this sampling?

Match the Women Mathematicians
The Association for Women in Mathematics (AWM) created this game – can you match these women with their scientific accomplishments? (You can also find biographies of women mathematicians to learn more via Agnes Scott College!)

Math and Logic Puzzles by Martin Gardner
Martin Gardner (1914-2010) was an American popular mathematics and science writer, who shared his love of fun math and logic puzzles and magic tricks through decades of magazines and journal articles and books. For a taste of his work, try this collection of puzzles inspired by Gardner’s writings.

MathDice Daily Challenge
This mentally challenging and fun online dice game by ThinkFun helps players sharpen math skills by solving problems in a fun new way.

Puzzle Making Workshop Materials from Scott Kim
At the 2017 Festival, Scott Kim hosted a hands-on workshop showing kids of all ages (that includes adults) how to make your own versions of Sudoku and Pentominoes — two of the most popular mathematical puzzles. If you didn’t make it to the event, or you attended and want more, here are the downloadable handouts for his activities so you can try them at home!

Solvemoji
Solvemoji puzzles are inspired by emoji characters, using multiple pictures to represent groups of numbers. These puzzles are based on the mathematical orders of operations BODMAS, which stands for B – Brackets, O – Orders (Powers and Square Roots, etc.), DM – Division and Multiplication, AS – Addition and Subtraction. Make sure to follow the BODMAS order when solving puzzles to find the solutions!

#### Art and Crafts

Mathematical Imagery
The connection between mathematics and art goes back thousands of years. Mathematicians and artists continue to create stunning works in all media, from computer graphics to origami, 3D printing, and LEGO sculptures!

Origami and Math
How do origami and math relate to each other? Start by unfolding an origami model and find a complex geometric pattern, even in simple projects. Did you know that you were folding those angles or shapes?  You can try to solve origami challenges, such as folding a piece of paper so that certain color patterns arise, or so that a shape of a certain area results.

Print & Play Resources
These projects can be printed at home and assembled to create mathematical objects!

• All About FlexagonsLots of activities here about folding these tricky paper puzzles. You can also try our 2017 National Math Festival flexagon print and play puzzle at home!
• Free Math Printables: 3D ShapesCreate free printable patterns for common 3D shapes like pyramids, cubes, octahedrons, and more! You can add your own photos, textures, or clipart images to the faces to make them more colorful. Use these patterns to print and construct photo cubes, math models, and more.
• Platonic Paper Folding: These polyhedra designs by the Bridges Organization were a hit at the 2017 Festival – now you can print and assemble them at home with cardstock and glue.

#### Books & Video

Easy Origami
This low-cost book (under \$5) is a great way to start learning origami skills! Try 32 simple projects using origami—clearly illustrated and with easy-to-follow instructions that even beginning papercrafters can follow with success.

Navajo Math Circles
This inspiring documentary film, airing on PBS starting in September 2016, is a peek at the lives of the hundreds of Navajo children who in recent years have found themselves at the center of a lively collaboration with mathematicians from around the world, exploring the deep connections between math, nature, and Navajo culture.

Numberphile
Journalist Brady Haran makes fascinating videos starring mathematicians and others from around the world who are excited to share their favorite topics with you, whether it’s learning about curvature from eating a slice a pizza to picturing a number “so epic it will collapse your brain into a black hole”! Over 200 million viewers have joined the fun – there’s something for everyone here.

Patterns of the Universe: A Coloring Adventure in Math and Beauty
Alex Bellos and Edmund Harriss have created a unique coloring and activity book showcasing the fascinating things math can be discovered in the universe, from 4D hypercubes to the infinite patterns of tessellations and more. For even more fun, check out the follow-up title, Visions of the Universe: A Coloring Journey Through Math’s Great Mysteries.

Powers of Ten
This classic video created by Charles and Ray Eames takes us on an adventure in magnitudes, from a picnic by the lakeside in Chicago to the outer edges of the universe. Every ten seconds we view the starting point from ten times farther out until our own galaxy is visible only as a speck of light among many others. Returning to Earth with breathtaking speed, we move inward- into the hand of the sleeping picnicker- with ten times more magnification every ten seconds. Our journey ends inside a proton of a carbon atom within a DNA molecule in a white blood cell.