We cover all of the major standards and skills in math for grades K–9. Freckle groups skills and standards into larger topics, often called domains. Below, you can see the major topic groups we cover (as well as their abbreviated names).

These names may appear differently depending on what state you are in and what standards your school follows.

**Elementary School Topics**

- Counting and Cardinality (CC)—grade K
- Operations & Algebraic Thinking (OA)—grades K–5
- Numbers and Operations in Base 10 (NBT)—grades K–5
- Geometry (G)—grades K–8
- Measurement & Data (MD)—grades K–5
- Numbers & Operations—Fractions (NF)—grades 3–5

**Middle School Topics**

- Ratios & Proportions (RP)—grades 6–7
- Statistics & Probability (SP)—grades 6–8
- Expressions & Equations (EE)—grades 6–8
- The Number System (NS)—grades 6–8
- Geometry (G)—grades K–8
- Functions (F)—grade 8

**High School Topics**

Students can independently work their way through High School Courses (Algebra I, Algebra II, or Geometry). Learn more about this practice mode here.

Are you looking for more basic concepts? Check out Number Basics or Number Facts (both available for K–2 students).

- Number Basics covers foundational math skills and number sense
- Number Facts covers practice in conceptual understandings of addition and subtraction