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Lesson Plans (3) A detailed description of the instruction for teaching one or more concepts or skills. Learning Activities (2) Any activity that would enhance a lesson or unit in order to help the learner master an objective 
and/or acquire a skill.  Examples include, but are not limited to, online tutorials, experiments, 
demonstrations, and hands-on activities.


ALEX Lesson Plans


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Subject: Mathematics (9 - 12)
Title: You can die now or "dilate R to R'"
Description: This lesson will teach students to not only create a dilation, but also assist them in understanding the relationship of similarity between a figure and its image through a dilation.  Students will use an online math tool to adjust the location of the point of dilation, and they will find the scale factor changes when the point of dilation moves.  Students will also find that parallel lines can be used to create a dilation.


Thinkfinity Lesson Plans


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Subject: Mathematics
Title: Symmetries II     
Description: In this unit of four lessons, from Illuminations, students use Java applets to investigate reflection, mirror, or bilateral symmetry. They learn about the mathematical properties of mirror symmetry and have a chance to create designs with mirror symmetry.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Symmetries I     
Description: In this unit of four lessons, from Illuminations, investigate rotational symmetry. They learn about the mathematical properties of rotations and have an opportunity to make their own designs.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



Thinkfinity Learning Activities


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Subject: Mathematics
Title: Square Graphs     
Description: This student interactive, from an Illuminations lesson, allows students to view six different graphs. Each graph plots one characteristic of the square along the horizontal axis and another along the vertical axis. Students then determine which two characteristics are used to make each graph.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Scale Factor     
Description: This student interactive, from Illuminations, allows the user to investigate the changes in area and perimeter when the side length is doubled, tripled, or quadrupled.
Thinkfinity Partner: Illuminations
Grade Span: 6,7,8,9,10,11,12



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