Make: Paper Inventions – A fun how-to book for kids and their adults




Make: Paper Inventions

Kathy Ceceri

Maker Media, Inc. – paperback

Don’t just hand this book to your kids, say “Have fun,” and then go off to play with your computer. Get out the glue, scissors and paper and join in.

You might enjoy seeing what happens  when you (1) cut all the way around a Möbius strip or (2) fold a single strip of paper into a versatile and surprising trihexaflexagon, or (3) try your hand at quilling. That, the author writes, is “the art of creating 2-D and 3-D designs out of thin paper spirals and curls.”

Make: Paper Inventions opens with a nice, succinct overview of the history of paper and the fact that it was not made from the hard interior of trees until the mid-19th century. Before then, paper was made from many other materials, such as linen, cotton, the inside of certain tree barks, and the flattened stalks of papyrus plants.

The first project in the book is the messiest, and you may not want to use your favorite blender. But it will provide good teaching moments for kids (and their adults). The text and photographs show how to make new paper from several sheets of recycled copy paper. You will not want to run the homemade paper through your laser printer, but it can be used for art projects.

Kids can handle some of the paper projects in this book by themselves. However, the more complicated ones, such as building a large geodesic dome from newspaper pages, definitely will need adult guidance and encouragement. And certain materials may need to be ordered.

Meanwhile, the final chapters of this fine book offer projects that mostly involve folding pieces of paper. And they provide some focus on mathematics, such as how to fold paper in such a way that just one diagonal cut will result in a five-pointed star.

Make: Paper Inventions can help put more STEAM (science, technology, engineering, art, and mathematics) into the lives of your kids–and into your life, as well.

Si Dunn

Sophie’s Diary: A Mathematical Novel – Imagining French mathematician Sophie Germain as a young teen – #bookreview

Sophie’s Diary: A Mathematical Novel
Dora Musielak
(Math Association of America, hardback)

The Mathematical Association of America recently has published the second edition of this intriguing “mathematical novel.” Its story is built around a fictional diary and a real-life French mathematician, Marie-Sophie Germain.

The well-written tale imagines Ms. Germain writing down her thoughts and experiences while coming of age and learning mathematics amid the social turmoil that is roiling 18th-century Paris.

Marie-Sophie Germain is remembered primarily for her number theory work that offered several “novel approaches” to solving Fermat’s Last Theorem.

Si Dunn

The Manga Guide to Linear Algebra – Love, karate & mind-bending math in a helpful comic book – #bookreview #in

The Manga Guide to Linear Algebra
Shin Takahashi, Iroha Inoue, and Trend-Pro Co., Ltd.
(No Starch Press,
paperback, list price $24.95)

Linear algebra is one of the reasons I fled engineering school and became a writer many years ago. Mathematical abstractions and my mind just do not seem to know how to mix.

I would like to say that reading The Manga Guide to Linear Algebra has caused a complete breakthrough in my stubborn resistance to any math beyond simple equations. But that would be a complete lie. Linear transformations, inverse matrices, and eigenvectors still do not compute well inside my head. Of course, the good news – for me – is that they really don’t have to. I’m an old guy now and not worried about becoming a scientist or mathematician. I’ll never have to know a diagonalizable matrix from a determinant to cash a Social Security check.

But many young people do need to know linear algebra. And The Manga Guide to Linear Algebra can be helpful for any serious student, from middle-school age through college, who is wrestling with linear algebra concepts. It’s a fun book that mixes karate and romance with real math in a now well-proven comic book style that facilitates learning.

You do have to get past the fact that even this book has trouble presenting an easily grasped definition of linear algebra. “That’s a tough question to answer properly,” young math whiz Reiji Yurino confesses to his new love interest, Misa Ichinose. But once you do slide past his mind-numbing response (“Broadly speaking, linear algebra is about translating something residing in an m-dimensional space into a corresponding shape in an n-dimensional space”), each key concept is presented and illustrated in clever and helpful ways amid an unfolding story of young love and having to learn self-defense.

Thanks to this book, I now know more about linear algebra than I learned in my doomed attempt to become an electrical engineer. And who knows? If I had had the book many decades ago, I might now be lecturing in a university classroom, stealing quotes from Reiji Yurino, and telling you with a chuckle: “You can generally never find more than n different eigenvalues and eigenvectors for any nxn matrix.”

Seriously, if you know someone who is facing linear algebra with dread (maybe it’s you) or struggling with it and now expressing frustration and resistance, this book likely can help.

Si Dunn