Before the calculator and even the abacus was invented, there was a little instrument called the human brain that we used to do math. Remember that? While most of us turn to our trusty Ti-84s to do calculus homework or whip out our cell phone calculators to determine how much we should tip at Johnny Rocket's, it can often be much faster to use our own brains, along with a piece of paper and pencil.
This video shows students how to add fractions with different denominators. To add different fractions you must be able to find the least common denominator.
MIT Professor Arthur Mattuck gives a lecture on how to calculate with ordinary differential equations (ODEs). He also covers the geometrical view of y'=f(x,y), directional fields, and integral curves.
In this tutorial you will see how to use Jimmy's speed math program that he wrote in Flash. A download to the program is included. This is a GREAT way to help your kids or students (or maybe adults?) get better at math.
Become Harry Potter of Mathematics. In 5 min. reprogram your mind to calculate faster than the Calculator itself. Impress others with your super-fast mental mathematics.
Before we had the calculator and before we had the abacus we had the human brain to complete our math problems for us. Remember that? Well, it seems that few of us do, resorting to calculators on our phone for elementary subtraction problems and multiplication.
Want to be able to do large multiplication problems without a calculator? This video will teach you a method of multiplication in which you will be able to multiply three digit numbers in a single step.
This video demonstrates, without narration, a trick to multiplying large numbers. To do the trick, just draw a diagonal line for every unit in the number and add up the number of times the lines cross.
This tutorial instructs how to calculate the exact area of a rectangle. This tutorial will be very handy for parents, it will help you be able to rescue your children from the homework pit.
Learn how to compute derviatives from this web channel devoted to educational shows and resources for schools. Annenberg Media brings you an interesting lecture that combines history and math.
