Purpose of this tech tool:
The purpose of this tech tool is for it to be an online graphing calculator. It has lots of functions and its main one is probably to be able to graph things through it, a calculator.
How to use this site:
Desmos is kind of a complex site. It has many features that if mis-comprehended can lead up to mass confusion. Such a case would be mine. Desmos has many features. But lets start out with the simple things.
1. Click on the link above, named "LINK TO MY SITE"
1. Click on the link above, named "LINK TO MY SITE"
2. Once that site is opened click on "Launch Calculator"
3. Once you are in the blank graph their are many things that you can do. But lets start with the simplest one:
How to make a line
As you may see on this blank graph you can notice that their a box on the left hand side. This box is where we are going to but our intervals. The box looks like this:
This is the box that we are going to be working with. Inside this box is where you type to equations to make a line. Lets start out with a very simple one. Click inside the box until you are able to type. You will know this is possible since their will be a blinking line inside of it. To be able to write the equation you either need a keyboard or the "keypad" that is provided for you. Your keypad might be closed in the bottom of your screen so click on the button that says "keypad". It looks like this.
With this button you will be able to open the keypad. This keypad is the thing that enables you to do all the lines that you may want. From comic drawing such as this one: 
To serious graphs, the posibilities of what you can draw with this aplication are limitless. But what I will be teaching you today will be the basics for making complex drawings like these. Look at the fish graph that is right next to this text. The number of equations that are needed to make this graph are 28 different equations, they are all about as complex as this one: x=-655\sin \left(0.001y\right)+118\space \left(-800\ge y\ge -3700\right) Looks kind of hard right? Can you imagine 28 different equations that are all strategically placed to created this fish. that is chasing other fishes under to water. Its incredible.
Today I will be teaching you how to make a simple line graph. Yes a graph with only one line. It looks like this: 
(The graph above shows how I used this aplication. This is a graph that I made to show people thow to use the aplication.) See how this graph is simple. It only has one line. Remember the box where I told you that you had to type in the things there to make your equation. If no look back. In this box you will right the equation that will lead to the making of this line. The equation that makes this line is "y=x" Your box should look like this when you type in the equation
That is my box for the graph above. That equation is the one that creates the line. Now what you have to do if you are using a keyboard is type in y=x and that is it. It will a pear right in the box perfectly and the graph will be made. But if you are using a tablet you will need to use the keypad that this aplication provides for you. I already explained to you how to use the keypad, but to get the intervals to make this graph you will need to click on the "show more" button, that you will see if the top right corner of your keypad assuming that it is already open. When this is open you will be able to type in the intervals of y and x. Once you have the equation in the box the line will automatically appear. And there you go, you are done.
This site might be used by other students in the class because sometimes the graphing calculators that we have that are actually calculators are very difficult to use. Plus this calculator is much more visual. This application enables students to represent graphs that are larger and maybe it could be posted on a projector by a math teacher in their class, this could enable student learning. Students will be able to use this calculator more easily students will be able to have access to a graphing calculator if they do not already have one in possession.
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