All resources created by Carl Yao can be freely used in any way
except for commercial purposes. Note that this statement does not
apply to linked resources created by others.
Did you find a mistake?
Do you have a suggestion to i
mprove an activity?
Do you have a better activity that you want to share with all PCC
math teachers?
Email me at
xiaolong.yao@pcc.edu
All future users will benefit. Thank you!