Happy Tuesday 1.31.17 Go Formative! Graph while you wait for your computer: (-6,2) (2, -6) (-2, -2) x=4 Find the ordered pair where they intersect ( , )? Make sure you have your foldable! If you have colored pens or pencils, bring them!
Learning Target Agenda *Reflection Notes 8.G.A.1 *Hands on Practice *Math Aids Worksheet 8.G.A.1 I can verify congruency by measuring and comparing the properties of rotated, reflected or translated geometric figures.
Reflections!
Foldable Reflections ~Flip ~Mirrors the image ~Same shape, same size ~Figures are congruent. ~Is reflected over a line (symmetry)
Foldable Write the vertices of A’_________, B’_____________, and C’____________.
Hands-On Reflection Practice Working with your team, set up the original image (YELLOW) then reflect with it’s congruent (PURPLE) shape using the graph sheets and plastic figures.
1. Reflect over y-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
2. Reflect over x-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
3. Reflect over line y=x. ? http://www.shodor.org/interactivate/activities/Transmographer/
4. Reflect over y-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
5. Reflect over x-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
6. Reflect over line y=x. ? http://www.shodor.org/interactivate/activities/Transmographer/
7. Reflect over y-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
7. Reflect over x-axis. ? http://www.shodor.org/interactivate/activities/Transmographer/
7. Reflect over line y=x. ? http://www.shodor.org/interactivate/activities/Transmographer/
PATTERNS? A(-1, 1) A’ (1,1) B(-1, 5) B’ (1,5) C(-5, 1) C’(5,1) Let’s examine #1-sketch in comp book and take notes. A(-1, 1) A’ (1,1) B B’ B(-1, 5) B’ (1,5) C(-5, 1) C’(5,1) C A A’ C’
PATTERNS? A(-1, 1) A’ (-1,-1) B(-1, 5) B’ (-1,-5) C(-5, 1) C’(-5,-1) Let’s examine #2-sketch in comp book and take notes. A(-1, 1) A’ (-1,-1) B B(-1, 5) B’ (-1,-5) C A C(-5, 1) C’(-5,-1) A’ C’ B’
6. Reflect over line y=x. How can we do this without tools? http://www.shodor.org/interactivate/activities/Transmographer/
6. Reflect over line y=x. Draw the line of reflection. What do you notice about coordinates for ABCD And A’B’C’D’ D’ B’ A B C’ A’ C D http://www.shodor.org/interactivate/activities/Transmographer/
6. Reflect over line y=x. A(2, 3) A’ (3,2) B(6, 3) B’ (3,6) D’ B’ A(2, 3) A’ (3,2) A B B(6, 3) B’ (3,6) C’ A’ C(2, -1) C’(-1,2) C D D(6, -1) D’ (-1,6) (x, y)→ (y,x) http://www.shodor.org/interactivate/activities/Transmographer/
Draw line of reflection as a dashed line! If you finish early, Practice Sheet Side A-do all Draw line of reflection as a dashed line! If you finish early, work on ALEKS homework. WE are not done for the day.
Label Points
Exit Ticket Side B of Reflections #5-6 will be graded
3rd 4th Exit Ticket Side B of Reflections #3-6 will be graded *When you finish- Get on ALEKS!