Abstract: I will talk about a big class of examples for (pre)-triangulated categories -- the homotopy category of a pointed model category is a pre-triangulated category. I will start from the Reedy model structure and define framing on a (pointed) model category, roughly mention that Ho(mathcal{C}_*) is a closed Ho(sSet_*) module, and then define the loop and suspension functors, and also fiber and cofiber sequences.