The document discusses the design of the PARCC summative assessments in mathematics. It outlines three primary task types - Type I, II, and III - that will be used to generate evidence for claims about student performance. Type I tasks assess concepts, skills and procedures and will be machine-scored. Type II tasks assess expressing mathematical reasoning and may include hand-scored responses. Type III tasks assess modeling and applications and may also include hand-scored responses. The Performance Based Assessment will include all three task types, while the End-of-Year Assessment only includes Type I tasks. Evidence statements are used to specify what each task should assess and are derived from the Common Core standards.