Orcas Essay

1894 words - 8 pages

Picture This!A Project for the Graphing CalculatorT^3 International ConferenceNashville, TNMarch 7-9, 2003Presenters:Retha GipsonWestside High School1630 Hwy 91WJonesboro, AR 72404rgipson@westside.crsc.k12.ar.usSusan CreekmoreMarion High SchoolOne Patriot DriveMarion, AR 72364screekmore@marion.crsc.k12.ar.usEdited By: Heather RiddleFebruary 2005Graphic Art: A Project for the CalculatorNCTM Standards:Understand patterns, relations and functionsUnderstand relations and functions and select, convert flexibly among, and use various representations for themUnderstand and perform transformationsStudent ExpectationsThe student will:Apply knowledge of functions to create calculator artImprove ...view middle of the document...

Suggestion: if you do a heart in class require them to do something else for their picture or you will get 20 hearts!You will need a graph link and the program installed on at least one computer to print out the projects.Requiring the students to color and title their work enhances the pictures.I do not let my students use the draw feature of the calculatorSome students will want to animate their work but the computer cannot print the ball bouncing, etc.Allow several days for the completion of the project.Picture This! A Project for the CalculatorDirections: It is time to show your artistic talent! Write up to ten equations that when graphed on your calculator will produce a picture. You must use a minimum of three distinct equations. For example, a target with circles of three different sizes is considered one equation. (The radius is the only thing changing.) You may use Function Mode only (Y =). You may not use Polar, etc. Once you have a picture created to your satisfaction use the computer and graph link to print out your artwork. Enlarge it to 200-250% so that it will be about ½ page. Also print out your equations and the window that you used. Please do not enlarge these. For each equation identify the part of the graph that it draws. Add color and a title to your artwork. Write at least a paragraph describing your project. Include the goals of the activity, a description of your procedure, any problems encountered and what you learned from the project.Your Project is due on ____________________________________Items to turn in:Your art work complete with color and a titleThe equations you used (link to computer and print out)Each equation identified with what part of the picture it drawsThe window you used (also link to computer and print)Paragraph typed or written neatly in inkHelpful HintsMaking a circle: The Y = key is designed for graphing functions. Since the graph of a circle is not a function, we must make adjustments.Take the equation of a circle, and solve it for y. You will get two equations: andDecide on a value for r and enter those two equations in your calculator for Y1 and Y2 and graph. If zoom6 (zstandard) is used, the screen will show an ellipse, not a circle. This is because the screen is not square which causes distortion. To make a round circle, zoom5 (zsquare) must be selected.Sometimes the ends of the ellipses or circles do not meet. This is a pixel problem. There are 94 pixels horizontally and 62 vertically. To adjust for this you should make the Xmin and Xmax a multiple of 94 and Ymin and Ymax a multiple of 62. For example, Xmin= -9.4, Xmax = 9.4, Ymin = -6.2 and Ymax = 6.2 works well.Note 1: If you are trying to conserve the number of equations you can condense the two above into a single equation by typing Y1 =(1, -1(.Note 2: If you want to graph only a piece of a function you may do...

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