The education and textbook credit is based on the number of full-time months and part-time months you were in school, as shown on your T2202, T2202A, TL11, or tuition receipt (rather than the actual amount you spent on textbooks). Each month you were a student is counted only once, even if you were enrolled in two programs that month.
If you were enrolled full-time, the education amount was $400/month and the textbook amount was $65/month. If you were enrolled part-time, the education amount was $120/month and the textbook amount was $20/month.
TurboTax automatically claims the textbook credit for you when you enter your T2202, T2202A, TL11, or tuition receipt information. Enter this information in the DEDUCTIONS Students step of TurboTax.