An assignment in TRIZ usage. This is an individual assignment.
Refer to the introduction to TRIZ. All the lists of TRIZ contradictions and principles are available there.
TRIZ is based on resolving contradictions in a product or design. In this case, the product will be a stapler.
Find a stapler on the Web that is well-enough described that you are comfortable with how it is put together and how it operates.
Find a contradiction in that product. You may consider the contradiction lists as guides to help you find aspects or characteristics of your design that are contradictory.
Use the material in the TRIZ to identify which principles pertain to the contradiction you have found.
Consider each TRIZ principle that applies in your stapler, and try to find as many alternatives as possible to your current design, based on the application of the TRIZ principles.
REMEMBER to properly cite the source of your stapler. Beware plagiarism!