- On p. 101, rephrase T/F #5 as “When we pass indeterminates as arguments to Sage functions, we must redefine any mathematical functions that depend on them.”
- On p. 102, rephrase MC #8 as “The best way in Sage to substitute for an indeterminate that was passed as an argument is by:

A. function-call substitution

B. dictionary substitution

C. keyword assignment

D. function-call substitution*after*redefining the function”