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Published byMelissa Cross Modified over 8 years ago
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Using the figure on the board, solve the problem Lines k and l are parallel What is the value of z? a) 130 b) 120 c) 100 d) 80
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http://youtu.be/gb3yBvDkIMk http://youtu.be/gb3yBvDkIMk
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(this PowerPoint will be posted on the class wiki if you miss something)
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A copy of a geometric figure The copy holds certain properties (Similar to copy and paste on the computer) Pre – image = original figure Image = new (copied) picture
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2 basic types: 1. Rigid Transformations – Definition: the pre image and image both have exact same size and shape – 3 types of rigid are: – A. translations – B. reflections – C. rotations 2. Non-rigid transformations
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Non rigid transformation: ◦ Definition: it can do stretching and shrinking and twisting
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http://www.gradeamathhelp.com/transforma tion-geometry.html http://www.gradeamathhelp.com/transforma tion-geometry.html This is a resource, in case you need to refer to later
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https://njctl.org/courses/math/geometry/tra nsformations/transformations-2/ https://njctl.org/courses/math/geometry/tra nsformations/transformations-2/
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Summary: How can you represent a transformation in the coordinate plane? Put answer in your notebook Date and label
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Do Now: Create a venn diagram for the two words 1. rigid transformation 2. non-rigid transformation in your notebooks
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Definitions (in terms of lines parallel or perpendicular, angles, circles, segments) 1. Reflections 2. Rotations 3. Translations
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Pictures/videos to help with definitions
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Pg. 551 ◦ #42, 43, 44 then describe to me using the terms learned today (translation, reflection, rotation) about how transformation relate to slope Create a brochure of terms, large frayer diagram, and/or song with dance step / beat that will mimic reflection or translation
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Honors: read article, write synopsis on the article, but they must include the terms in the article Paragraph, use of proper grammar, math terms, math connections, good spelling, Type on edmodo and send to me or we will use gaggle
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How can you verify that your rule is correct for a specific transformation? (ticket out)
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D.E.A.R 10 minutes At the end of today’s D.E.A.R please send me a message on edmodo describing your what you read today; you will have 5 minutes
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Define the transformation type 1. Rotation 2. Line of reflection And 3. What kind of lines are y = 2 and x = 5 (describe the orientation of the line)
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Reflections and rotations Use of paper plates Ordered pairs Coordinate plane
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Define reflection Define rotation Define composition of transformation
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9-2 puzzle, connect dots
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How can you change a figure’s position without changing its size and shape? Why might you want to? (ticket out)
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D.E.A.R 15 minutes Do now: what is the name of the original figure in transformations? What is the name of the new figure? Test on unit 2 rotations, reflections, translations
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D.E.A.R 15 minutes Do now: solve an algebraic equation
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Go over yesterday’s test Work on projects ◦ Wallpaper or wrapping paper (your translation design) ◦ If did not turn in your notebook ready, get it ready now and turn in before you leave (it is late, but you will receive at least a B if you have everything and organzied)
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