Go to teoria.com
Click “Sign in” in the upper right
Select the link at the bottom to become a member
On the target page, enter 45K2D47WK4 in the “coupon code” field, then update cart
Please join with the first and last name you use in class (in that order). Otherwise I will not recognize your work.
Note: you can use teoria.com without a membership, but you need to be a member to save your results and have them reported to me.
