In today’s lesson, students will continue working on pattern alterations, focusing specifically on sleeves. The instructor will explain how to transform standard sleeves into puff sleeves by altering the pattern, including cutting to the center and adjusting fullness. Various diagrams will illustrate different types of puff sleeves, highlighting where gathering should occur, both at the top and bottom. The lesson will guide students through the first alteration step-by-step, ensuring they understand how to apply these techniques to their patterns.