- Tapa blanda: 229 páginas
- Editor: Createspace Independent Pub (29 de mayo de 2013)
- Idioma: Inglés
- ISBN-10: 1489507175
- ISBN-13: 978-1489507174
- Valoración media de los clientes: Sé el primero en opinar sobre este producto
- Clasificación en los más vendidos de Amazon: nº311.412 en Libros en idiomas extranjeros (Ver el Top 100 en Libros en idiomas extranjeros)
Hard Math for Elementary School (Inglés) Tapa blanda – 29 may 2013
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Reseña del editor
Hard Math for Elementary School is new category of math book. The author calls it a math enrichment textbook. The idea is to make it easy for teachers or parents to supplement what kids are getting in school with with complementary lessons that are harder, deeper, and more fun.
Hard Math has chapters to accompany most textbook topics: addition with carrying, multiplication, fractions, etc. It covers other important topics – prime numbers, counting, probability – that are being squeezed out of many curricula. And it has chapters on topics which may not be as important — tiling floors, solving number puzzles, making polyhedra out of marshmallows and toothpicks — but that make the book more fun and develop higher-level reasoning skills.
Hard Math can be used in many different ways. Some parents will enjoy reading it together with their child. A teacher can give the book to an exceptional student who could read through it on her own whenever she's done early with the regular math lesson. Or a teacher could treat the book as a set of lesson plans for his or her top math group: each section of the book can serve as a set of lecture notes and the students could then work separately or together on the corresponding workbook page. Hard Math can similarly be a blueprint for an after school math club.
Hard Math is designed to be accessible to very advanced 3rd graders. But Hard Math is very hard. Most parents will find that there’s a lot in it that they don’t know and most advanced kids will be better off waiting until at least 4th grade to try it.
A workbook (sold separately) contains over 100 challenging worksheets to reinforce the lessons of each section. PLEASE don't buy a copy of the book without also getting a copy of the workbook. It's really hard for anyone (let alone a 3rd grader) to learn hard concepts and figure out whether they really understand them without working through applying them. For many kids the back-and-forth between the text and the workbook is the central experience of Hard Math.
An answer key for the workbook is also available. You can buy it cheaply on Amazon or view it for free on Prof. Ellison's MIT website.
Biografía del autor
Glenn Ellison is the Gregory K. Palm Professor of Economics at MIT. He is also the parent of three daughters and has spent many hours coaching middle school math teams and working with informal groups of younger and older kids in his kitchen classroom.
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That has all been said by other reviewers but the reason why I felt compelled to write a review was my experience with the chapter on "base 8" arithmetic. I have some background in computer science and am very familiar with a binary system (base 2). I (and possibly the kid as well) absolutely loved the chapter - both from a mathematical as well as a sociological perspective (different people can talk and think differently based on their unique cultural experiences). However, there was one unintended consequence. The chapter uses Simpsons as an example of a society that might use a base 8. At which I felt obligated (encouraged by endless stream of "pleases") to introduce my kid to the Simpsons show. Not a wise parenting decision :-). I hadn't watched much of the show myself and even shows I watched before feel very different to me now as a parent. Simpsons is not an appropriate show for an 8 year old (or even a 10 year old for that matter). So, if you are in a similar situation I would recommend you to skip that chapter until the end of the book. Even from a complexity of concept perspective, I think it belongs much later in the book.
Having said that I must say that I truly am grateful for Glenn Ellison to have taken the time to put this book together. Chances are that any money he's making from this book is not commensurate with the value of his time. However, Glenn you do have a bunch of indebted parents.
So worth it.