# math

## MangaHigh - Cool, Free Middle School & High School Math Games

Here's a find-- free, online games to help kids learn upper level math and mathematical thinking. Emphasizes getting the correct answer quickly, and the games are challenging.

Topics include Algebra, Geometry, Trigonometry, Estimation, Times Tables, Fractions, Decimals...

## CK-12: Free, quality math and science curriculum

This site features textbooks in a flexible format called "Flexbooks" available for free download and printing. Most programs include a Teacher's Edition, workbooks, and other supplementary material, all for free. The topics at the moment include middle school and high school level math and science. The science is mainstream (evolution is included in Life Science and Biology programs). The Chemistry course includes labs. The math is fairly traditional and includes Algebra, Geometry, Trigonometry, Probability & Statistics (AP), and Calculus (AB). Free S

## Math Live, online animated math tutorials from LearnAlberta.CA

This free site features 23 different interactive tutorials on a range of math concepts. The focus is on understanding concepts, not drill. The tutorials are "taught" by friendly animated characters-- it's not as fun as Cyberchase, but it's not too dry either.

The topics covered are: decimals, fractions, basic geometry, plotting points on an XY coordinate system, and probability. If there's a topic that your child isn't getting or is resistant to being taught, this could be a helpful site.

## Illuminations: Resources for teaching math (interesting! free! K-12)

Illuminations is a website maintianed by the National Council of Teachers of Mathematics. The website has interactive math games that allow kids to explore math concepts or review math facts, without being tedious drills. A few favorites in our house:

## Free, Creative Math Lesson Plans from the Math Project Journal

Includes lessons for Pre-algebra, Algebra, and Geometry. Some relate to popular culture, others mythology, all involve a hands-on component. Could be a way to add some fun or at least novelty to a topic review.

## Virtual Age- Dating: a free interactive tool that explains "carbon" dating

Virtual age-dating is an interactive tool that describes how geologists and archeologists are able to determine the age of samples. Aimed at high school level and above, but an interested middle school level child could grasp the concepts introduced with help. Students should be familiar with the concept of ions , percentages and how to read data off a graph to do the exercise. FWIW, I think the scale of some of the graphs are poorly chosen, and make it difficult to be as precise as the exercise requires; a per

## Khan Academy- a goldmine of free math, science and economics videos

Khan academy is an amazing resource. It's a HUGE collection of videos, all featuring a smart man with a gift for clearly explaining the complex, carefully going through a wide range of topics, all clearly organized. There's everything from classic brain teasers, to arithmetic, to high school level math, including calculus and differential equations, to biology chemistry, physics, and economics. The graphics in the videos are fairly simple, and the tone is very friendly, conversational and often funny.

## Mathematics Enhancement Programme- free curriculum for all ages

This is a complete mathematics curriculum available free online, including printable practice books, lesson plans, and copy masters. It was developed for the UK, and goes from "Reception", which seems to be analogous to kindergarten in the US, up through year 11 (similar to 11th grade). There are 2 versions of the 10-11th year curriculum, only one of which seems to be for college-bound students. The collegebound version includes guidance for customizing the curriculum for advanced students. The version of the 12th year intended for collegebound students is not

## World Maths Day 2010

The annual free online math competition is back! World Maths Day is an international competition open to all children from age 5 to 18, and is a great way to get competition-oriented kids to work their math skills.

The official competition is during a 48 hour period that includes March 3 worldwide, but kids can play head-to-head with children from all over the world anytime.

A description of the contest from the official website: