When I teach paper piecing I have the people precut the fabric into the sizes needed for each sections of the block. When they get to the class I tell them that they have already done the bulk of the work and now we can start creating the design. I hate wasting time in classes just doing repetitive cutting. Precise pre cutting will produce amazing results and reduce the frustration level of having to rip out, cut again then sew again! I follow Carol Doaks method and all her patterns give generous pre cutting instructions. You may want to check out her website and then join her Yahoo group. www.caroldoak.com