History of Fractions Did you know that fractions as we use them today didn't exist in Europe until the 17th century? In fact, at first, fractions weren't even thought of as numbers in their own right at all, just a way of comparing whole numbers with each other. Who first used fractions? Were they always written in the same way? How did fractions reach us here? The word fraction actually comes from the Latin "fractio" which means to break. From as early as 1800 BC, the Egyptians were writing fractions. Here is an example of how the numbers were made up: Could you write down in hieroglyphics? The Egyptians wrote all their fractions using what we call unit fractions. Here is one fifth. Can you work out how to write one sixteenth? They expressed other fractions as the sum of unit fractions, but they weren't allowed to repeat a unit fraction in this addition. But this is not: The huge disadvantage of the Egyptian system for representing fractions is that it is very difficult to do any calculations. was called uncia
The Math Forum - National Council of Teachers of Mathematics The Math Forum has a rich history as an online hub for the mathematics education community. A debt of gratitude is owed to the dedicated staff who created and maintained the top math education content and community forums that made up the Math Forum since its inception. NCTM will continue to make many of the most popular parts of the Math Forum content accessible to the mathematics education community. We hope that you will join or continue to be a member of the NCTM community to access even more high-quality resources for teaching and the learning of each and every student. Problems of the Week The Math Forum created Problems of the Week as an integrated program that features problems by standard and additional teacher support materials. Continue Your Math Education Conversations in MyNCTM! MyNCTM is an online community where NCTM members can ask questions, network and connect with each other, start and join discussions, find and upload resources, and interact with education experts.
Rader's NUMBERNUT.COM BetterExplained – Math lessons for lasting insight. mathleague.org cell phone project Project K-Nect is designed to create a supplemental resource for secondary at-risk students to focus on increasing their math skills through a common and popular technology – mobile smartphones. Ninth graders in several public schools in the State of North Carolina received smartphones to access supplemental math content aligned with their teachers’ lesson plans and course objectives. Students communicate and collaborate with each other and access tutors outside of the school day to help them master math skills and knowledge. Free Printable Math Worksheets Foldables/Study Guides Lose a foldable? All foldables & study guides that we have made in class are available below. If you need help filling in the blanks, please see the completed foldable or study guide in the classroom. 6th Grade Adding and Subtracting Fractions and Mixed Numbers (PDF 11 KB)Four-door foldable for operations with fractions. 6th Grade Multiplying and Dividing Fractions and Mixed Numbers (PDF 12 KB)Four-door foldable for operations with fractions. 6th Grade Decimals Foldable (PDF 43 KB)Four-door foldable for decimal operations 6th Grade Ratio, Rates, and Proportions (PDF 46 KB)This foldable gives definitions and examples of ratios, rates, and proportions. 6th Grade Proportions (PDF 32 KB)This foldable shows the steps needed to solve a proportion. 6th Grade Percents (PDF 70 KB)This tabbed-book is a great overview of percents. 6th Grade Discount and Sale Price (PDF 54 KB)Print this foldable, then make a double-sided master Algebra Vocab (PDF 21 KB)Includes definitions and examples of some key words
Books | VmGhana These are in approximate chronological order of publication starting with Bharati Krsna’s groundbreaking book. Vedic mathematics Or Sixteen Simple Mathematical Formulae from the Vedas. The original introduction to Vedic Mathematics. Author: Jagadguru Swami Sri Bharati Krsna Tirthaji Maharaja, 1965 (various reprints). Publisher: Motilal Banarsidass. Author: Jagadguru Swami Sri Bharati Krsna Tirthaji Maharaja, 1978 (various reprints).M Publisher: Motilal Banarsidass. Discover vedic mathematics This has sixteen chapters each of which focuses on one of the Vedic Sutras or sub-Sutras and shows many applications of each. Author: K. Pebble Maths – A new and successful way to teach Vedic maths to beginner learners of all ages and abilities. This book starts right at the beginning and is the perfect start for any child or adult wanting or needing to learn basic numeracy. Vertically and crosswise Triples This book shows applications of Pythagorean Triples (like 3,4,5). The cosmic calculator Author: S.K.
Quick Guide to the Common Core: Key Common Core Expectations Explained - Mathematics - Vander Ark on Innovation Guest blog by Kathy Kellman, executive editor of mathematics at Curriculum Associates Note: This is part two of a two-part series. Last week, my colleague Adam Berkin wrote the first part in this series, " Quick Guide to the Common Core: Key Common Core Expectations Explained " for the English Language Arts standards. A lot of people (including some educators) have a lot of anxiety about math: How do we teach it? How do we learn it? All of mathematics is built on a few basic ideas. Following are some of the key differences between the new standards and many of the current educational standards in place around the country. Narrower and deeper focus in each grade The Common Core standards for math were designed to focus instruction on fewer topics each year, allowing more time to be spent on each topic to foster deeper understanding of key concepts and skills. Coherent connections and consistent progressions The goal behind the demand for coherence is to make math make sense. Rigor