Learning Planet Sizes 
Teacher Assessment Rubric Student Assessment Rubric 

As a result of this project the student could:  

  Independently 
3 points
With Some Assistance 
2 points
With much Assistance  
1 point
Unable 
0 points
Compare the size of one student with another < = >.        
Compare the size of the earth to one other planet <= >.         
Give three or more examples of scale models.        
Order three planets in size from largest to smallest.        
Order five planets in size from largest to smallest.        
Order nine planets in size from largest to smallest.        
Measure the size of classroom objects using different kinds of units.        
Measure the circumference of balls using different kinds of units.         
Select a ball to be a scale model of Earth, then select  balls to represent other planets.        
Build "scale models" of planets using different materials.