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NORWELL PUBLIC SCHOOLS |
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Technology-Enhanced Learning Activity Summary |
| Name: Patricia Butler | School: Norwell Middle School |
| Learning Activity Title: Scaled Polygons and Their Effect on Area | |
| Grade Level(s): 8 | Subject Area: Math |
| Description of Activity:
What is the learning experience? What will teachers and students do during
the course of the activity? Through what performances or products will
students demonstrate what they know and are able to do? The students will use Geometer's Sketchpad to first create scaled figures and compute the ratio of their sides. Then they will compute their respective areas and the ratio between those areas. The children will be able to generalize that when you scale a figure by 1/2, the ratio of the areas of the original figure and the new figure is 1/4. |
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| Technology Standards Addressed: This
learning activity will allow students to develop proficiency in the
following Norwell Public Schools technology standards: 5.0 Graphical Concepts (Geometer's Sketchpad) |
Skills and Concepts
(see Scope and Sequence) Draw, scale figures, and compute ratios in Sketchpad Insert Text Box in Sketchpad Print Preview in Sketchpad |
| Curriculum Standards:
Which curriculum frameworks, strands, and learning standards does the
activity address? 8.G.2 Classify figures in terms congruence and similarity and apply these relationships to the solution of problems. 9.P.3 Explain and analyze - both quantitatively and qualitatively, using pictures, graphs, charts, or equations - how a change in one variable results in a change in another variable in functional relationships.
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| Materials & Equipment: What
specific software, hardware, websites, handouts, and other printed materials
are involved in this activity? Attachments
included Geometer's Sketchpad Worksheet on how to perform the activity Previous lessons using Sketchpad |
Teacher Tips and Notes:
What strategies are recommended regarding logistics, preparation, classroom
management, or other implementation concerns? This lesson should follow immediately after studying the four types of transformations (translation, rotations, reflections, and scaling) on Sketchpad. The lesson on scaling flows directly into this lesson. |
| Back to Norwell Public Schools | Back to Scope and Sequence |
| Back to Content Areas | Back to Grade Levels |
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Janet Eskin 8/06 |
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| Clip Art from www.animationfactory.com | ||