Lesson Plan : Scanning
Teacher Name: | linda hall |
Grade: | College/University |
Subject: | Other |
Topic: | resolution -DPI (dots per inch) |
Content: | use of scanner for production of images image size, DPI, Print size, screen resolution, scan scale, descreen, |
Goals: | To be able to scan an image with appropriate settings for a planned outcome Secondary objective - be able to transfer setting information to different user interface. Using Inspiration students will make a concept map of the relationship of scanner settings to printed and screen image. |
Objectives: | Students will perform a series of experiments that will result in 1)printed images with easily observeable differenses, 2) a concept map to identify variables. Secondary objective - be able to transfer setting information to different user interface. Assumptions: Students can open applications Inspiration, Adobe Photoshop, save a file, print to a networked printer. |
Materials: | a small object, photograph, magizine image scanner attached to computer color laser printer, projector for demonstration |
Introduction: | Scanning for effect-Introduction with questions. What is resolution? What is DPI? Cursory assessment of knowledge of students scanning/printing vocabulary. Why when you print from the internet does the image come out so small? When I select sharpen image, why do parts of the image distort? |
Development: | Open Inspiration type Microtec scanner as the main idea Make associated points for settings DPI, Size and Scale, Descreen Set other variables to a standard for the duration of the exersize (mode RGB) demonsrate, pre-scan, selection tool, overview burrton. Scan the item or photo at 72, 300, 900, Print at 100% observe & record visual differences |
Practice: | Have the students repeat the three scans, change 1 variable (scale, print, image size) at a time. repeat the print. Include at least 1 - 72 dpi as an enlarged image. Scan the Magazine image with & without the desceen setting. Drag an image from the internet to the desk top. Open in photoshop, enlarge image size (200 % do not change the dpi - print. Initiate a group discussion using the results for material to use in the concept map Save all origional scans in a folder - Use copies to make adjustments. |
Accommodations: | |
Checking For Understanding: | solicit questions from students- have the other students answer as often as possible -have a student repeat the demonstration. |
Closure: | Screen images are all 72 dpi, enlarging onscreen is enlarging the view - not te image size. |
Evaluation: | Print a 300 dpi PhotoShop document incorporating 3 images generated at 72,300, 600 dpi. students will need to make adjustments, Create an Inspiration concept map developed for Epson scanner. |
Teacher Reflections: |
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