The document provides information about two classroom techniques: gallery critique and desk graffiti. Gallery critique involves students anonymously providing feedback on each other's work by leaving post-it notes. This allows students to learn from each other and receive feedback without stigma. Desk graffiti reimagines worksheets and desks as giant whiteboards. Stimuli and instructions are provided, transforming individual work into more interactive group activities like categorizing, discussing, and planning essays. Both techniques encourage peer learning, engagement, and save teachers time.