**PA Core****PA Common Core: Mathematics (2013)**

**Numbers and Operations**

**GRADE High School**

Use units as a way to understand problems and to guide the solution of multi-step problems. (2.1.HS.F4)**Algebraic Concepts**

**GRADE 7**

Model and solve real-world and mathematical problems by using and connecting numerical, algebraic, and/or graphical representations. (2.2.7.B3)**GRADE High School**

Use reasoning to solve equations and justify the solution method. (2.2.HS.D9)**Geometry**

**GRADE 7**

Visualize and represent geometric figures and describe the relationships between them. (2.3.7.A2)**GRADE 8**

Understand and apply congruence and similarity using various tools. (2.3.8.A2)**GRADE High School**

Apply geometric concepts to model and solve real world problems. (2.3.HS.A14)**PA Common Core Standards for Mathematical Practice **

**Mathematical Practices**

**Grade 9-12**

Attend to precision. (9-12.6)Look for and make use of structure. (9-12.7)Look for and express regularity in repeated reasoning. (9-12.8)