!8: Good Bargain Scientific Calculator Online With Fractions

Sunday, January 1, 2012

A mathematical parody of Fergie's Fergalicious. If you have an undeniable passion for this song, you can purchase it from several music sharing websites, including iTunes, LimeWire, eMusic, Amazon, and Rhapsody. A sincere thanks to Dan D'Amelia for technical assistance and the Clifton Park Fire Department for allowing use of their facilities. LYRICS Four, three, two, one Listen up, ya'll, 'cause this is it The numbers we're making are so vicious Mathmaticious expeditious can be kind of scary I hope my answers aren't radical or imaginary I convert percents to fractions, it brings me some satisfaction Like scientific notation and order of operations Mathmaticious (repetitious) Gets me expeditious My answers may get vicious My eraser's left in stitches I make wishes (woo-ah) I get the answer right, right And I'll be staying up all night just to check what I write (four, three, two, one) Mathmaticious (The Pythagorean Theory) Mathmaticious (Finds the hypotenuse for me) Mathmaticious (Or I'll use trigonometry) I'm Mathmaticious (ddddd-decimal, decimal) Locus of the points Locus of the points Locus of the points (points is echoing) I'm up about figuring out greatest common factors And when I make a pie chart I'm in need of a protractor The angle of elevation, thanks to my calculations Turns out to be 43, a prime number I'm Mathmaticious (repetitious) It makes me so ambitious My answers are judicious Calculator never glitches It's my mission (deh deh deh den) I get the answer ...

Mathmaticious

On Pillow Pets Discount Whirlpool Duet Repair Discount Find Playstation 3 Discount

Sunday, December 25, 2011

Service Learning Project (LowQ): Online Educational Games/Software for Girls (K-6)

!±8± Service Learning Project (LowQ): Online Educational Games/Software for Girls (K-6)

A higher resolution video is available here: youtu.be This project was inspired by Kid Pix. When I was in elementary school, our computer free time was spent either exploring digital art or playing math and science games like Logical Journey of the Zoombinis. When I volunteered at Girl's Inc. during their computer free time, I noticed that girls were playing dress-up flash games. While these games were not inappropriate, I thought that girls were missing the opportunity to expand their academic and computer skills in a fun way. I explored many organization and resource websites, eventually compiling a list of math games, logic puzzles, literacy games, and a math/science RPG designed for girls (Josie's World). This discovery also led me to two free computer programming resources, MIT's Scratch and Alice.org, aimed at teaching kids and young adults basic programming skills in an accessible manner. If this list is well received, I would like to explore adding a computer skills class during the summer programs at Girls Inc. NASA Student Resources Games about aeronautics, physics, science trivia, space trivia (K-8) www.nasa.gov Online Painting/Drawing Program Several dynamic brushes and pencils for free-hand drawing online www.onemotion.com Online Math Tools Manipulatives, geometry pegboards, fraction modeling, graphing calculator, math facts (K-8) www.theteachersguide.com Tower of Hanoi Math Logic Puzzle nlvm.usu.edu Cool Math Games Flash games, spatial reasoning puzzles ...

Service Learning Project (LowQ): Online Educational Games/Software for Girls (K-6)

Gaggia Coffee Machine Buy Now Promotions Sorel Pac Boots

Sunday, November 27, 2011

How To Tell The Nature Of Roots Of Quadratic Equations!

!±8± How To Tell The Nature Of Roots Of Quadratic Equations!

Nature of roots of quadratic equations

Quadratic equations are degree two equations. When these are solved we get the solution in the form of two values of the variable in them. Solutions have many names, such as, roots, zeroes and value of the variable. The key is there are two values of the variable and they can be real and imaginary. In grade ten to grade twelve math students need to know both kind of solutions (roots). In this presentation I am focusing on real roots only.

There are three possibilities about the roots of the degree two equations. As the degree of these equations is two, they have two values of the variable contained in them, but that is not the case all the times.

Some times there are two roots which are distinct and unique, some of the times an equation has both the same roots and in other cases there is no solution to the equation. No solution to equation means there is no such a way to solve the equation to get real value (real roots) of the equation and there could be imaginary roots to these kinds of equations.

There is a method to tell the nature of roots of quadratic equations without solving the equation. This method involves finding the value of discriminant (D as symbol) for the quadratic equation.

The formula to find disciminant (D) is given below:

D = b² - 4ac

Where "D" stands for disciminant, "b" is the coefficient of the linear term, "a" is the coefficient of the quadratic term (term with square of the variable) and "c" is the constant term.

Disciminant is calculated using the above formula and the result is analyzed as given below:

1. When D > 0

In this case there are two distinct real roots of the equation.

2. When D = 0

In this case there are two equal roots for the equation.

3. When D < 0

In this case there are no real roots for the equation.

For example; consider we want to know the nature of roots of the quadratic equation, "3x² - 5x + 3 = 0"

In this quadratic equation; a = 3, b = - 5 and c = 3. Use these values in the formula to find the discriminant for the given equation as shown below:

D = b² - 4ac

= (- 5)² - 4 (3) (3)

= 25 - 36

= - 11 < 0

Hence, D < 0 and the given equation have no real roots.

Finally, it can be said that the discriminant is the key to predict the nature of the quadratic equations. Once the value of discriminant is calculated using its formula nature of the roots of a quadratic equation can be predicted.