Log in to Canvas
On the web
Click NUS Students / Alumni.
Enter your official NUS email (not your friendly mail alias), e.g. e0123456@u.nus.edu , or your NUS-ID, without domain. e.g. e0123456
Enter your NUS password in the password field, then click Sign In.
On the Canvas Student mobile app (Android/iOS)
Tap Find my school.
Type National University of Singapore and tap the National University of Singapore | NUS Students / Alumni option.
Log in as above.