Calvin is intrinsically motivated to learn about snakes.
Calvin is demonstrating External Motivation in a comical way identifying that he is programed to do whatever the teacher says. This is indicating that the only reason he is in school or doing what the teacher wants because he has to.
Calvin has no motivation to learn the lesson.
Calvin is identifying that he will be more motivated from an external motivation, The bigger the reward the better grades he will try for.
Calvin does the work to boost his ego and to build himself up. This is the only reason for his work on this assignment.
Calvin identifies the need to stay focused to get the job done, even giving up the opportunity to play in the snow with Hobbes.
Calvin is very invested and excited about being an inventor, He is working out of school and working very diligently on something he is passionate about.