Students love these factoring hamburgers. Not only do the students need to factor each trinomial, but match the correct buns to patties. The hamburger patty contains the trinomial and the two buns each contain one of the factors. Because of the nature of this activity, it is self checking. I have students work in groups of two. I laminated the hamburgers for longer use. These trinomials all have a = 1, but it is completely editable.