Integration as inverse process of differentiation ... Fundamental Theorem of Calculus (without proof). Basic properties of definite integrals and evaluation of definite integrals.
for those've you who haven't seen the video they're reacting to, think: 2 girls, 1 cup… except it's a guy… and a (glass) jar… that goes up his ass… and shatters… and DESTROYS his anus… ENJOY!