1. Radial Design/Rotational Symmetry

2. What is it?
the radius is the distance from the center of the circle to its perimeter
. When something is symmetrical, it means that it is balanced, or the same on each side.
It can be turned less than a full turn around its center point in a counter clockwise direction, and this will look the same as its original position

3. Essential Question
How can we recognize geometric relationships and apply them to other disciplines?

23. Rubric for Rotational Symmetry Project
25 points
20 points
10 points
0 points
Score
Neatness, good craftsmanship
Student accurately, patiently, and neatly copied the work from each pie wedge
Student copied the work mostly accurately, but it could have been neater
Student did not seem to copy very accurately
Student did not copy accurately, student did not finish the project
originality
Student made a challenging choice for a design, and the work was not too “easy”
Student’s choice was good, but not very challenging
Still showed some difficulty
Student’s choice was somewhat simple, and easy to copy
Student made a choice that was far too easy and not challenging at all
Wedge size and match up
Wedge lines lines are drawn evenly with straight lines from a ruler, and wedges match up
Wedge lines are drawn somewhat evenly, student did not take time to match wedges
Student did not match up wedges at all, or did not use a ruler to draw lines
Student did not draw wedges and copy design correctly at all there is no evidence of symmetry
Effort, attitude
Student made his or her best effort with this project
Student made a good effort, but not their best
Student made little effort, and did not use time wisely
Student made no effort, and project is unfinished
Total score