Not sure if this is the correct forum to post bugs, but I noticed a small typo in the last sentence of the "Parameters and Arguments" lesson of the functions section.

"Replace the ___s with the parameters base and exponent and call power on a base of 37 and a power of 4." should say

"Replace the ___s with the parameters base and exponent and call power on a base of 37 and an exponent of 4."