Texas Instruments Nspire CX Graphing Calculator (N3CAS/GC/2L1)

!±8±Texas Instruments Nspire CX Graphing Calculator (N3CAS/GC/2L1)

Brand : Texas Instruments
Rate :
Price : $149.88
Post Date : Dec 28, 2011 15:33:00
Usually ships in 24 hours

Stay mobile, continue learning - Transfer class assignments from handheld to computer. Complete work outside of school using student software. On the desktop at home or a laptop on the bus, at the library, coffee shop or wherever. Explore higher-level math concepts - Explore symbolic algebra and symbolic calculus, in addition to standard numeric calculations. View exact values - in the form of variables such as x and y, radicals and pi - when doing step-by-step arithmetic, algebraic and calculus calculations.Visualize in full color - Color-code equations, objects, points and lines on the full-color, backlit display. Make faster, stronger connections between equations, graphs and geometric representations on screen. Real-world images - Use digital images or your own photos. Overlay and color-code math and science concepts. Discover real-world connections. Recharge with ease - The installed TI-Nspire Rechargeable Battery is expected to last up to two weeks of normal use on a single charge. No alkaline batteries needed. Calculate in style - The sleek TI-Nspire CX handheld is the thinnest and lightest TI graphing calculator model to date. It's also the brightest with a high-resolution, full-color display that makes it easy to see every exponent, variable and line. 3D Graphing - Graph and rotate (manually and automatically) 3D functions. Change the wire or surface color of your 3D graph.

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How To Create A Scatter Plot

!±8± How To Create A Scatter Plot

Learn to create a scatter plot with your Ti Graphing Calculator

How To Create A Scatter Plot

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Effects of Technology on Education

!±8± Effects of Technology on Education

Education has changed significantly in the last twenty years. One of the main reasons education has undergone so many changes is because of technological development. In 1990, computers and other forms of technology served a minimal role in the classroom. Today, many if not most college students attend class with a laptop. I am writing about some of the biggest advantages technology gave to education.

Technology has made research much easier. Before online Encyclopedias, Google Scholar, JSTOR, and other online research tools were available, students were forced to spend numerous hours in the library. With the new tools, students can conduct research faster in the comfort of their homes. With Google and other search engines, students can find relevant information faster and more efficiently. Also, there is no more need for intensive memorization as information is more readily available.

New also technology allows for a faster, more efficient, and more interactive classroom experience. With Powerpoint presentations and projectors, there is no need for blackboards and whiteboards. With clickers, students can take quizzes during the classroom.

These developments also help improve tutoring services. Online tutoring programs are becoming available. One-on-one in-home tutoring programs are also being aided these developments. Tutors can bring laptops to sessions allowing them to look up information, and show examples to the student more easily.

Wi-fi technology allows students to study in more comfort and a more ergonomic setting.

New mathematical software such as Maple and Mathematica allows students to make a computer algebra computations more easily. Software like Matlab and Scilab allows students to make numerical computations more easily. There is no more need for a line rule. Advanced Texas Instrument and Casio calculators allow students to solve equations and produce graphs. Online software such as Webassign allows students to submit mathematics assignments online with instant feedback.

The internet allows students to read books and educational supplements at home. There is no need to go to a bookstore or library. Since many of these sources are open source or funded by advertising, students can access these materials for free. Wikipedia, Wikibooks are good examples. Students can learn more without leaving their house.

College applications and job applications can now be complete online. Students can deliver important paperwork to universities and employers at a much faster rate.

Online education allows more students to get an education. Handicapped students, students that have to travel a lot, and students with jobs can now complete their degrees wherever they go with a flexible schedule and often at their own pace. Due to its lower costs, online education also benefits lower-income students.

Technological development allowed the creation of new IT jobs and improved economic development in general.

Not all effects of technology on education are positive. Technology also allows students to cheat more easily. However, new technology allows instructors to detect plagiarism. Technological developments can also discourage critical thinking since answers are more readily available. Technology also encourages students to spend their time doing other activities such as playing video games and participating in social networking.

Overall, technological development in the 1990s and 2000s appears to be beneficial to education. Currently, technology improvement follows Moore's law which states that computers become twice as efficient approximately every two years. Today, one can purchase a well performing personal computer (without a monitor, software, and other accessories) for as low as 3.99. Recently, I have not spent over 0 on a desktop computer and it allowed me to do very advanced computations like high-sample Monte Carlo algorithms. If the trend continues, students all over the world will be able to afford desktops and laptops contributing to a better global education.

Effects of Technology on Education

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Ergonomic Office Equipment

!±8± Ergonomic Office Equipment

With the fear of lawsuits related to workplace injuries today, employers would be wise to consider investing in ergonomic office equipment. However, there are many other benefits, both to the employer and the employee, of using ergonomic office equipment. Until recently, it was not considered dangerous to one's health to work in an office setting. Offices seem relatively harmless compared to warehouses and factories where injuries are easily foreseeable. However, there are possible injuries that can happen in offices as well. Office related injuries are usually long term wear and tear problems. These types of issues can cause employees to use more of their health insurance and employer provided assistance programs as well as to miss more work and be less productive when they are working.

Some common injuries and health problems that happen to office employees are overuse injuries such as carpal tunnel syndrome and tendonitis as well as eye problems. Those who type on computers at their offices, are at risk of developing problems in their wrists, shoulders, backs and other parts of their bodies from sitting in chairs and using keyboards all day long. There are ways to lessen this impact, such as encouraging stretching, but, it is often worth it to invest in ergonomic equipment as a long term solution.

Some examples of ergonomic office equipment include special desks, chairs, keyboards and computer mice. Ergonomic desks often include slide out drawers for computer keyboards, and these drawers are typically adjustable so they can fit the appropriate height and can tilt and incline as needed. These can be a huge help in lessening carpal tunnel syndrome. In addition, special computer mice are available that are easier on the hands and wrists of those using them. It is also important to look up information on how to appropriately adjust the arm of the desk chair to appropriately match the keyboard and the mouse position in order to minimize the likelihood of carpal tunnel syndrome developing. As for problems in the shoulder and back and tendonitis in other parts of the body, ergonomic desk chairs can do a lot to help.

Ergonomic office equipment is typically a little more expensive than traditional equipment. It is usually worth investing in these purchases rather than saving money initially on uncomfortable equipment only to have unhappy, unhealthy and unproductive employees. If bought in bulk, employers can often find discounts on ergonomic office equipment. Sometimes, programs are available to help or to reward employers who invest in ergonomic equipment for the good of their employees.

If you are self employed or are responsible for your own office equipment, it is worth it for you to invest in ergonomic equipment that will be good for your health long term. Aside from the cost of replacing equipment later on down the road, this will be a one-time expense that will definitely pay off. You can also write off this equipment on your taxes, and you may be able to get discounts on your health insurance if you can prove that you are using equipment that will likely reduce visits to the doctor and health problems later on down the road.

Ergonomic office equipment is usually available at the same place where normal office equipment is found. As the market has changed to favor ergonomic equipment, and customers have become familiar with the risks associated with using office equipment, almost all equipment now is made to cater to be ergonomic on some level. However, some retailers and companies specialize in only ergonomic equipment and will offer more selections.

Ergonomic Office Equipment

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Nutritional Value of Sweet Potatoes

!±8± Nutritional Value of Sweet Potatoes

Sweet potatoes' history goes back to a very long time ago. People started consuming sweet potatoes from back in the day. It is one of the oldest vegetables on this earth as they are cultivated long way back. It is, however, not a huge wonder why they are widely used today since the vegetable is sweet, tasty and very versatile when it comes to preparation and presentation. It is grown in almost every part of the world. There are very many types of potatoes almost totaling 400. The color of the insides of these potatoes also varies ranging from orange to white to yellow. The outer skin color also has its varieties and they include white, orange, red or purple in color. The sweet potato is a very nutritious and can be eaten as a cooked vegetable or cooked and mixed in dishes.

The sweet potato can boast of having the following vitamins -vitamin A, vitamin C and vitamin E. The minerals found in this potato include potassium, magnesium and beta carotene. It also contains a lot of anti-oxidants.

The sweet potato has a lot of health benefits. Here are some examples of its health benefits:

• It is able to reduce the chance of suffering from diabetes or heart disease.
• Sweet potatoes also reduce the chance of becoming obese.
• The residual water that remains after one has boiled the potatoes can be used to cure arthritis. It also helps ease joint pains. This can be done by applying the boiled water where one is experiencing the pains.
• The fiber that is found in this potato helps in the bowel function. It reduces constipation. The fiber also reduces the chance of getting rectal cancer.
• They can also aid those who need to lose weight. This is because once consumed; it gives a person a feeling of fullness but does not lead to much gain weight. With the fullness, it will help control your food intake.
• These potatoes also contain potassium. The potassium helps boost the body fluid maintaining capacity. The potassium also helps maintain the integrity of the cells and balance of the electrolyte.
• Sweet potatoes contain beta carotene, which in turn, also helps in fighting off the free radicals in the body. These free radicals are known to contribute to cancer risk.
• They also help in the purification of the blood and maintain the blood pressure.
• If taken on a regular basis they can help cure an inflamed colon. It also helps reduce pains developing from ulcers.
• Sweet potatoes are also known to increase the density of the bone. This is because they have very high amount of calcium, thus, helping in bone formation and in making these bones stronger.
• They also help treat sleeping sickness.
• These potatoes also prevent hardening of veins and arteries walls.

The great taste of sweet potatoes coupled with all the health benefits should entice you to include them in your meals regularly. Aside from cooking them in dishes, you can also boil sweet potatoes for snacks.

Nutritional Value of Sweet Potatoes

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Leading Manufacturers of Graphing Calculators

!±8± Leading Manufacturers of Graphing Calculators

A computing devices that is able to plot graphs and solve graphing problems is called a graphing calculator. It can solve simultaneous equations and can perform various tasks with variables. The calculator has a large display that is able to take in numerous lines of text and calculations at the same time. There are also color displays, 3D graphing, and readily user-programmable graphing calculators that are useful in education, engineering, and scientific applications.

World's Leading Producers
Casio, Hewlett Packard (HP), Texas Instruments (TI), and Sharp are the world's leading producers of graphing calculators. Each company has their own top of the line models.

For instance, Casio has its fx-7000G graphing calculator manufactured in 1985. it was also one of the first graphing calculators that came out in the market. Hewlett Packard has HP-28C after few years and eventually produced the HP-28S in 1988.

The other models HP had produced are the HP-48SX in 1990, HP-48S in 1991 and the recent model, the HP 50g in 2006. The HP 50g has a feature of Computer Algebra System (CAS), powerful in solving analytical problems and in manipulating symbolic expressions. The production of HP-28 and HP-48 range is specifically intended to groups of science and engineering professionals.

The HP-38 HP-39 and HP-40 target the high school and college students as the main market. And the HP-49 model is sold to all levels of both educational and professional customers. It is known for its standard expression entry interface. All the HP series are popular because they are featured with Reverse Polish Notation interface.

In 1990, Texas Instruments started to manufacture graphing calculators. Their first model was the TI-81 series. The TI-82 and TI-83 series consist of TI- 83, TI-83 Plus, and TI-83 Plus Silver Edition. These have larger internal memory. Their TI-80 and TI-73 series are best suitable for students, ages 10 to 14 years old. The design of TI-85, TI-86, TI-89 series, and TI-92 series which comprises of the TI-92, TI-92 Plus, and Voyage 200 are applicable for calculus. And the TI-89 and TI-92 series are designed with computer algebra system; however, the TI-92 series offers a QWERTY keypad.

Texas Instrument devices are purposely produced mainly for the educational sector and the general public. Sharp has been also involved in the production of graphing calculators. However, they do not have collections of programs.

Here are the top selling models regardless of brand names:

HP 48G II Graphing Calculator
It is a perfect graphing calculator for either laboratory activities or classroom work in math, science, statistics, engineering and surveying. The calculator features 128KB Memory, and 80.7KB of the total memory is available to the user. It has 131 x 64 pixel display and has large built-in constant library and structured programming for making applications.

The HP graphing calculator features more than 2,300 functions. It has a Computer Algebra System (CAS). This feature is very helpful in numeric solving and symbolic manipulation. Thus working in complex arithmetic or calculus functions will be easier and not complicated.

It also provides comfortable viewing because it has a large screen along with 2D and 3D graphing modes. Such screen has also serial port and IrDA connectivity that consists of cable and software. The serial port can be connected to the PC for easy transfer of data. The graphing calculator is featured with algebraic, RPN and textbook entry modes As well.

It is operated on three batteries. It also comes with an auto shut off feature after five idle minutes. It measures only 7.2 x 3.4 x .09 inches and weighs 7.7 ounces.

Texas Instruments TI-89 Titanium Graphing Calculator
Texas Instruments TI-89 Titanium Graphing Calculator is ideal for advanced engineering applications and advanced college mathematics. It has a big working memory of 188 KB RAM, and upgradeable to 2.7 MB Flash ROM and 3D graphing. It includes a mini USB port and such USB port is useful for a more convenient transferring of data. It has a display of 100 x 160 pixels.

This device is handy in storing important financial data. It has pre-programmed applications like a cell sheet, polynomial root finder, calendar, note folio, symbolic math guide, French and German localization, and simultaneous equation solver. The calculator has a graph mode that can store 99 equations. And some of the analysis of TI calculator includes maximums, minimums, roots, intersections, derivatives, arc lengths, inflection points, and integrals.

The unit comes in a hard slide case and power supplied by 4 batteries that are silver oxide. It comes along as well with a user instruction guide. It has one year warranty for the parts and for the labor.

Casio CFX-9850GB Plus Graphing Calculator
This graphing calculator is best for math and science students. It has 900 advanced features to help solve problems quickly and accurately. It has a total memory of 32 KB and can store up to 38 programs. It has also a large, easy to read display that can show eight lines and 21 characters, 15-digit, 10-plus-2. And such display is in three colors which make then the graph in animated form. Thus the variables in can be changed in a formula, and then will able to view the movement of the graph.

The calculator has ability to work on statistical calculations that include histograms, eight regression types, scatter plots, and box and whisker plots. It has a built-in communications port that can be connect to a personal computer. Graphic functions include making vertical lines, parametric, rectangular and polar coordinates.

The Casio graphing calculator is enclosed in a hard slide case and uses four alkaline batteries and a lithium battery. It comes also with a user guidebook. It weighs 2 pounds.

Leading Manufacturers of Graphing Calculators

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Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink)

!±8± Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink)

Brand : Texas Instruments | Rate : | Price : $99.99
Post Date : Nov 07, 2011 14:25:15 | Usually ships in 1-2 business days

Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink)

Texas Instruments, Inc. TI-84 Plus Silver. All the functionality of the TI83 Plus Silver with the added advantage of 9x more memory, speed and a selection of pre-loaded calculator applications (APPS). Includes TI Graph LINK for Windows plus a new stylish metallic silver case and comes with 4 AAA batteries.

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Scatter Plots on TI-84

!±8± Scatter Plots on TI-84

How to make a scatter plot and find its line of best fit on a graphing calculator.

Scatter Plots on TI-84

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