# IntMath Newsletter - Understanding math formulas, World Math Day

By Murray Bourne, 19 Feb 2009

1. Math tips - Understanding Math Formulas
2. World Math Day (4 Mar)
3. From the math blog
4. Final thought - Abraham Lincoln and math

## 1. Math Tips - Understanding Math Formulas

Last Newsletter I wrote some tips on how to learn math formulas.

But many students also have trouble understanding math formulas so I have written a special set of tips here:

Of course, learning and understanding go together very closely. You need to learn before you can understand, and understanding helps learning.

## 2. World Math Day (4 Mar)

World Math Day this year falls on Mar 4th. What will your school do on Math Day? If there are no plans yet, you may wish to join in this activity.

They are aiming for a world record. The challenge is to "correctly answer more than 182,445,169 math questions in 48 hours." Participants will compete in real time with people from all over the world.

Over half a million students have registered already. Each round lasts for 60 seconds and it's suitable for 5 to 18 year-olds (you are given age-appropriate questions). There is a practice competition so you can try it out before the real thing. You can even win an iPod Touch.

Over 20,000 schools participated in 2008.

## 3. From the math blog

The human body is an amazing "machine". Read on for some facts about our bodies.

2) Intel Schools of Distinction - real-life math gets the nod
Some schools stand out in the way they approach math and science education. See what some of the winning schools did.

3) SodaPlay simulations
SodaPlay allows the user to create interesting shapes connected by springs. It’s a fun way to learn some physics.

4) Fly Carbon Neutral
Here's one way of reducing carbon output with a voluntary user pays system.

## 4. Final Thought - Abraham Lincoln and math

This year marks the 200th anniversary of the birth of Abraham Lincoln, the US president best known for fighting against slavery. His self-study of math makes quite an interesting story. From the Lincoln Bicentennial site [no longer available]:

Abraham Lincoln was a lifelong learner.

His education began at his mother’s knee. With less than two years of formal education, though, he managed to become one of our most eloquent Presidents. The desire to rise above his poor beginnings and sheer perseverance led him to teach himself math as a child and later to pursue a career in law. Throughout his life, he continued to educate himself.

And this, from Abraham Lincoln's Short Autobiography of 1860:

He studied and nearly mastered the Six-books of Euclid (geometry) since he was a member of Congress. He began a course of rigid mental discipline with the intent to improve his faculties, especially his powers of logic and language. Hence his fondness for Euclid, which he carried with him on the circuit till he could demonstrate with ease all the propositions in the six books; often studying far into the night, with a candle near his pillow, while his fellow-lawyers, half a dozen in a room, filled the air with interminable snoring.

[Euclid, for those of you who are a bit rusty, was the Greek mathematician who proved many laws of geometry, such as the angles of a triangle add to 180°, and the external angle of a triangle is equal to the sum of the opposite 2 internal angles.]

Euclid's approach of proving geometrical statements had a profound effect on Lincoln. This form of thinking helped Lincoln to win his political arguments.

Until next time, enjoy learning.

You can subscribe to the fortnightly IntMath Newsletter on any page in Interactive Mathematics.

### 3 Comments on “IntMath Newsletter - Understanding math formulas, World Math Day”

1. Li-sa says:

My F.5 Math mock exam in school is on 4 March...

2. Murray says:

But good luck to you for the exam!

3. rafia says:

im a student of BE second year,thanks for sending me letter.i wish if u send me a previous year question paper,it will be help full to me,

### Comment Preview

HTML: You can use simple tags like <b>, <a href="...">, etc.

To enter math, you can can either:

1. Use simple calculator-like input in the following format (surround your math in backticks, or qq on tablet or phone):
a^2 = sqrt(b^2 + c^2)
(See more on ASCIIMath syntax); or
2. Use simple LaTeX in the following format. Surround your math with $$ and $$.
$$\int g dx = \sqrt{\frac{a}{b}}$$
(This is standard simple LaTeX.)

NOTE: You can mix both types of math entry in your comment.