TBP offers free one-on-one tutoring in core subjects for engineering. Courses covered include:
To receive tutoring in one of these subjects, email the TBP Campus Outreach Officer (firstname.lastname@example.org) with your name and course number, and some estimate of how much tutoring you're looking for. They'll get you paired up with someone who can tutor you, and you can work out a schedule that works for you.
Events are added continually throughout the semester, so be sure to check back later.