Mathematical+Reflections,+p+68+0910

Oct.12.2009 J.H.Choi

Big idea: Observation and description of changes in the world around us are the first steps in finding and learning about patterns.

Essential Question: How can a graphing calculator help me to discover relationships between variables?



1.

Dear my friend, In this investigation I learned a tool called graphing calculator. This tool is very cool. If you write an equation, it graphs it for you. Here are the steps. First turn this calculator on by pressing the on button. Then press a button that says 'y='. There should be a list of y='s. Finish the equation, then press graph. On the screen you should see a graph. If you want to make it into a table press the y= button. You should still have the equation. If you don't write the equation, press the blue button that has 2nd on it. press the graph button then there should be a table like above.

From: J.H.CHoi

2.

A) T=1/2n. Amount of tents is costumers times half. B)My equation works but I need to turn 1/2 in to a 0.5 so that the it would be easier for calculating.

3. When something is continueless you know it because, if it isn't then it would be more like a data. If it is countinueless then you should be doing what you are doing without stoping.

Summary: Graphing calculators are very useful tools. It helps you find out the relationship between two or more variables through graphs and tables. This tool is a powerful tool that will help you later on when you want to find out about two or more different variables. While I was observing the graphing calculator one of my friends found out that you can play games on the calculator. So, if you want to spend your 15 minute break doing something but you have nothing to do, then you can play games.
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