A student often sends me emails asking obvious (homework) questions whose answers can easily be found in the teaching materials.
I do not always keep the teaching materials with me, so I cannot reply immediately to the student that, for example:
(questions whose answers are in the lecture notes)
The answer to the question can be found in p.59, Lecture Note 5
or (questions that can easily be solved using the teaching materials)
It is similar to what we did in the previous lecture. For this question, the only difference is that...
As the result, I always decided to do it later (not an urgent/important task), and sometimes forgot to reply. It often took me a few days for me to reply. It is actually fine if students ask me these types of questions during tutorial lectures as it is my duty.
As a teaching assistant, can I just ignore these emails from the student to save my time?
Thanks for all the valuable answers. I realized I made a mistake. It is clear that the answers to the questions are in the teaching materials; however, it does not mean that students will manage to answer the questions despite the fact that the answers are already in the teaching materials. It is still possible that students may not understand the proposed solutions.
I will also suggest the instructor to create a Q/A section on Moodle for students enrolling in the course in the next academic year. It may be very helpful.