This portion of the assignment is worth 10 extra credit points. In this activity, you will build a gridded quadrat sampler that will allow you to make accurate estimates of leaf density in white clover (Trifolium repens). Leaf density is an important dependent variable for our larger CURE study of how white clover responds to urbanization. The accuracy of our estimate of leaf density at each sampling location is dependent on your attention to detail in both building and using your sampling equipment