Grade 3 Math, Lesson 10: The Eight Mathematical Practices

The goal of all instruction in mathematics should be to find the points of intersection between the Standards for Mathematical Content and the Standards for Mathematical Practice. The content standards, which set an expectation of understanding, are potential points of intersection. Students will be expected to solve Type I, Type II, and Type III items. Type II items call for written arguments/justifications, critique of reasoning, or precision in mathematical statements(MP.3, MP.6). Type III items call for modeling/application in a real-world context or scenario(MP.4). Other Mathematical Practices are also assessed through these types of problems. Standards from Operations and Algebraic Thinking, Number and Operations – Fractions, and Measurement and Data are considered the major content in grade 3. Students should have the opportunity to practice Type II and Type III items using these standards.