!8: Good Bargain Scientific Calculator Online With Fractions: 2011

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)

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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.

How To Tell The Nature Of Roots Of Quadratic Equations!

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Friday, September 9, 2011

Starting and Managing a Successful Home Based Business

!±8± Starting and Managing a Successful Home Based Business

There are pros and cons of working for you. You have to motivate yourself. Furthermore, what many people miss when you walk through the traditional workplace and work from home businesses allow their employees, the speeches, the camaraderie and the rivalry and competition. Work from home very long hours, it is very easy to isolate.

Although it is not impossible for an individual, a home-based business in an area where they start with no experienceis much less likely if the individual is already very experienced and qualified service, the company will be able to offer. If the person is already a successful builder plumbers, plasterers, hairdresser or accountant the opportunity to successfully transition to independence have been far better.

A really big advantage of working from home is the fact that there are commuters. With skyrocketing fuel costs, tolls and vehicle maintenance and moreTraffic on the roads driving to work is most uncomfortable the whole time.

The average person spends over 100 hours a year on their way to work and back. That is 100 hours per year, the person who works from home, to invest in their business.

Most workers spend much more than they actually admit they like coffee, donuts and food carryout lunch, or lunch at a restaurant or cafeteria food. Of course, few people do not take lunch to work, but a great advantage that thePerson working from home is that they make their own coffee for a fraction of the price and prepare their own meal in your kitchen. During the year, that alone could result in significant savings of money.

There are many tax advantages of owning and operating a home-based business. These tax benefits are not generally available to the person in a conventional job. The home-based entrepreneurs can deduct things like the maintenance of supply,and also part of the internet web-based company is in any case. The employer can deduct business mileage attributable to business. Most business people say at home, a home office.

Probably one of the best ways is to start a home business to start part-time. Spend a couple of hours a week on your new venture will test your ideas, your enthusiasm, and if you can recover any profit in the sector is self-financing, from the beginning

One of the great temptationsfor most young entrepreneurs is to spend money. They feel that they spend money to make money, to convince themselves that they have a new postal scale, a new desk and need a new computer, maybe a new printer, can also be faxed. This should resist the temptation to spend. The purpose of the company is not to spend money to earn.

The new employer should where possible always try to do with the equipment they already have. The equipment must be purchased, where possiblecorporate earnings and not to come in anticipation of profits. Of course, in some companies, the acquisition costs will be inevitable.