# Math

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Math Manipulatives: About Virtual Manipulatives Math Manipulatives contains three pages of resources: About Virtual Manipulatives What is a virtual manipulative? Basic Operations: Number Types Study Guide Natural Numbers (a.k.a. Counting Numbers) Thinking of natural numbers, we can transport ourselves back to simpler times. The good ol' days when our only responsibility was to show up for kindergarten class and not wet our pants. Aahhh, memories. It was at this point that we solidified our counting skills, and counting is what natural numbers are all about. The Harmonious Mathematics of Music According to legend, the Ancient Greek Pythagoras was once walking on the streets of Samos, when the sounds of blacksmiths’ hammering suddenly gave him an epiphany. Pythagoras rushed into the shop and, as he analyzed mathematically the shapes of the blacksmiths’ hammers, he laid the foundations of music that today’s Rihanna, Shakira and others are building upon. Wait a minute… Are you talking about the guy from the Pythagorean theorem? I am. And despite what you’ve learned at school, this Pythagorean theorem is absolutely not Pythagoras’ greatest idea — most notably because he probably wasn’t even the one who came up with the Pythagorean theorem.

8 math talks to blow your mind Mathematics gets down to work in these talks, breathing life and logic into everyday problems. Prepare for math puzzlers both solved and unsolvable, and even some still waiting for solutions. Ron Eglash: The fractals at the heart of African designs When Ron Eglash first saw an aerial photo of an African village, he couldn’t rest until he knew — were the fractals in the layout of the village a coincidence, or were the forces of mathematics and culture colliding in unexpected ways? Here, he tells of his travels around the continent in search of an answer. How big is infinity? Math Resources for Teachers (Lessons, Activities, Printables: K-12) Highlights Classroom Organization Tips Did you resolve to get organized this year? Our Top 10 Classroom Organization Tips will help you get your classroom in shape for the months ahead, whether your existing system needs a tune-up or you're ready for a total overhaul. February Calendar of Events February is full of events that you can incorporate into your standard curriculum. Our Educators' Calendar outlines activities for each event, including: Eating Disorders Awareness Week (2/21-27) and Leap Day (2/29).

10 Unusual Ways to Explore Math I confess. I never really liked math. I played the school game well so I received pretty good grades, but after I passed the test (even after receiving an A in most cases), those rules, theorems and facts didn’t stick around for very long. The problem was everything was drilled into me, or as I like to think now, drilled out of me. I sat and did problem after problem before I really had a great grasp of with math could mean, how it related to my life and how I could approach it in a way that made sense to me. Don't Pay for Technology: 25 Freebies for Students Jun 29, 2009 In today's economic climate, paying for technology isn't prudent, and for some students, it isn't even an option. Fortunately, there are plenty of freebies on the web that can help with document creation, research, writing, storage, collaboration, studying and more. Here are 25 free web apps and software programs that may be useful to students. Document Creation Zoho Office - Zoho Office is an amazing suite of web-based productivity and collaboration tools.

Fibonacci GCD's, please Fibonacci numbers exhibit striking patterns. Here's one that may not be so obvious, but is striking when you see it. Recall the Fibonacci numbers: n: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,... fn: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377,... Now let's look at some of their greatest common divisors (gcd's): graph: xy = –12 x Image InputX Upload an image from your computer: Enter a URL for an image: KS1 Numeracy A visual open ended activity to help with basic calculation and number bonds. Create number piles, Drag and drop the number bars to help explain a variety of concepts. A visual excersice to help with basic subtraction. Model and Solve Math Word Problems Grade 1 Grade 2 Grade 3

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