CCGPS Analytic Geometry

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Presentation transcript:

CCGPS Analytic Geometry Unit 1C | Lesson 1 | G.SRT.1-3 Dilations in the Coordinate Plane Daily Agenda Bell Ringer Activator: Solve the problems on Ratios– (8 mins) Dilating a Rectangle - Activity - (10 mins) Why Dilate? Instruction: Dilations & Extending Dilations to Similar Polygons (20 mins) Begin Dilations in the Coordinate Plane Task (30 mins) Review: Ratios and Dilations | Similar Polygon Dilations Comparison - W/sheet - (15mins) TotD: EOC Prep Question(s) (10 mins) H/W: Complete C/W CCGPS Analytic Geometry

Dilating a Circle (Construction Activity) Review Dilating a Circle (Construction Activity) You will need a pencil and straightedge. Find http://www.ccsstoolbox.com/

Activator Why Dilate? Some photographers prefer traditional cameras and film to produce negatives. From these negatives, photographers can create scaled drawings.

Activator Why Dilate? Scientists need to understand dilations when examining organisms under a microscope.

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Activator Why Dilate? Architects design buildings and structures on the computer and create blueprints from which builders and engineers construct.

Dilations in a Coordinate Plane Warm Up Dilations in a Coordinate Plane Begin working on your task handout. Pair with your elbow buddy. You should complete the graphing of the ordered pairs.

CCGPS Analytic Geometry Unit 1C | Lesson 1 | G.SRT.1-3 Dilations in the Coordinate Plane Daily Agenda Bell Ringer Activator: Solve the problems on Dilation – (8 mins) Review the Dilation on a Coordinate Plane - Activity - (15 mins) (Collect W/sheet) Instruction: Extending Dilations to Similar Polygons (20 mins Complete the Dilation Class worksheet (30 mins). TotD: Take the Weekly Quiz (CFA) - (20mins) H/W: Complete C/W CCGPS Analytic Geometry

Key Concepts The image and pre-image of a figure are similar Instruction Key Concepts The image and pre-image of a figure are similar A dilation with center C and scale factor k This is a type of transformation, not rigid, but non-rigid A dilation is a reduction if 0<k<1 (fraction) A dilation is an enlargement if k>1

Instruction Key Concepts

Instruction Key Concepts

Work on your classwork. (Pair- Share time) Instruction Guided Practice Work on your classwork. (Pair- Share time) - Complete your TotD - Weekly Quiz.

Complete what you don’t finish for homework. TotD EOCT Prep Question Complete what you don’t finish for homework.