Brain Teasers for Kids and Adults Riddles and Puzzles WELCOME to [wu:riddles]! This is an archive of problems I've been collecting since the Spring of 2002. They come from many places, including word of mouth, college courses, books, and job interviews for hi-tech positions. Many are even written by members of our own forum community. If you are a first-timer, here are some problems I recommend you start out with: The riddles are organized by difficulty as judged by myself: easy, medium, and hard. Hints are available for some riddles. If you need solutions or more hints, please post to the FORUM! My favorite kind of puzzle satisfies the following criteria: 1) It seems impossible, 2) Most people can understand it, and 3) It does not require specialized knowledge to solve. Many thanks to all the cool people who have sent me new material. Finally, I would like to again plug the forum, which i invite you to browse and perhaps even join.
Mathematics - Mathematics and MultimediaMathematics and Multimedia This page is a list of mathematics articles in Mathematics and Multimedia. You might also want to check the Post List page which contains the newest posts in major categories. The complete list of posts arranged by month can be found in the Archives page. Complex Numbers Series The Divisibility Series Area Tutorial Series Curve Sketching (New!) The Calculus Primer Series Experimental and Theoretical Probability Series MATH LITE (Fun, Games, Puzzles, Trivia) MISCELLANEOUS Math Word Problem Solving Series Age Problems Motion Problems Vedic Mathematics (by Sanjay Gulati) Paper Folding Set Theory General Information/Miscellany
California Math Standards - 6th Grade MathScore EduFighter is one of the best math games on the Internet today. You can start playing for free! California Math Standards - 6th Grade MathScore aligns to the California Math Standards for 6th Grade. The standards appear below along with the MathScore topics that match. Want unlimited math worksheets? Number Sense 1.0 Students compare and order positive and negative fractions, decimals, and mixed numbers. Algebra and Functions 1.0 Students write verbal expressions and sentences as algebraic expressions and equations; they evaluate algebraic expressions, solve simple linear equations, and graph and interpret their results: 1.1 Write and solve one-step linear equations in one variable. Measurement and Geometry 1.0 Students deepen their understanding of the measurement of plane and solid shapes and use this understanding to solve problems: 1.1 Understand the concept of a constant such as π know the formulas for the circumference and area of a circle. Mathematical Reasoning
The Thirty Greatest Mathematicians Click for a discussion of certain omissions. Please send me e-mail if you believe there's a major flaw in my rankings (or an error in any of the biographies). Obviously the relative ranks of, say Fibonacci and Ramanujan, will never satisfy everyone since the reasons for their "greatness" are different. I'm sure I've overlooked great mathematicians who obviously belong on this list. Please e-mail and tell me! Following are the top mathematicians in chronological (birth-year) order. Earliest mathematicians Little is known of the earliest mathematics, but the famous Ishango Bone from Early Stone-Age Africa has tally marks suggesting arithmetic. Early Vedic mathematicians The greatest mathematics before the Golden Age of Greece was in India's early Vedic (Hindu) civilization. Top Thales of Miletus (ca 624 - 546 BC) Greek domain Apastambha (ca 630-560 BC) India Pythagoras of Samos (ca 578-505 BC) Greek domain Panini (of Shalatula) (ca 520-460 BC) Gandhara (India) Tiberius(?) Geocentrism vs.
Murderous Maths: Tricks and Games! Do you want to be a mind reader? Or maybe have a brain that does lightning calculations? Or maybe you just want to make your friends feel silly! Some of these tricks are in the Murderous Maths books, but here I can let you play on my special calculators and other computer gadgets! The Fiendish Football Team Illusion! Let Riverboat Lil READ YOUR MIND! The EIGHT QUEENS Puzzle! The 7-11-13 Trick (And other miracle sums) Pass your friends a calculator - and then make them feel really silly with these simple tricks! The Predictor Cards The trick with four cut-out cards, you pick a number from 1-16 and it mysteriously appears in a hole at the back! The Missing Digit Trick Your friend does a sum then crosses a digit out - you can tell what it is without looking! The Prime Numbers Trick Make a strange prediciton using the magic of PRIME NUMBERS. The Five Card Trick A sneaky little trick you can carry round in your pocket. What were you like when you were born? The Impossible Guess!
Math Sites for Kids A+ Math This site has plenty of activities and games to help beginning to intermediate math students improve their skills. Flash cards, concentration games, more. AAA Math Designed for grades K-8, this comprehensive math resource contains hundreds of pages of basic math skills and randomly-created interactive practice activities. Ask Dr. Brain Bashers Includes an interesting collection of math, logic, and language puzzles, games, and illusions, separated into easy, medium and hard categories. ChiliMath A great resource that covers key concepts in Algebra, with material that ranges from introductory to advanced. CoolMath.com Have fun while practicing your math through lots of cool games, activities, and animated demonstrations. Figure This! The Fruit Game Can you be the one who takes the last pieces of fruit from the table? Funbrain Math Arcade Choose your grade level and playing piece, then see if you can beat all 25 animated math games at this fun site.
Go Maths MathNook Math Games