Missouri State Standards for Mathematics: Grade 2

MO.N.1. Number and Operations: Understand numbers, ways of representing numbers, relationships among numbers and number systems.

N.1.A. Read, write and compare numbers: read, write and compare whole numbers less than 1000 (DOK 1; MA5 1.10)

N.1.B. Represent and use rational numbers: recognize unit fractions of a shape (DOK 1; MA5 1.10)

N.1.C. Compose and decompose numbers: compose or decompose numbers by using a variety of strategies, such as using known facts, tens place value or landmark numbers to solve problems (DOK 2; MA1 1.6)

N.1.D. Classify and describe numeric relationships: skip count by multiples of numbers less than 10 (DOK 1; MA5 1.6)

MO.N.2. Number and Operations: Understand meanings of operations and how they relate to one another.

N.2.A. Represent operations: represent/model a given situation involving two-digit whole number addition or subtraction (DOK 2; MA1 1.10)

MO.N.3. Number and Operations: Compute fluently and make reasonable estimates.

N.3.A. Describe or represent mental strategies: describe or notate the mental strategy used to compute addition or subtraction of whole numbers, including 2-digit numbers (DOK 2; MA1 3.2)

N.3.B. Develop and demonstrate fluency: demonstrate fluency including quick recall with basic number relationships of addition and subtraction for sums up to 20 (DOK 1; MA1 1.6)

N.3.C. Compute problems: apply and describe the strategy used to compute 2-digit addition or subtraction problems with regrouping (DOK 2; MA1 3.2)

N.3.D. Estimate and justify solutions: estimate sums and differences of whole numbers (DOK 3; MA1 3.2)

MO.A.1. Algebraic Relationships: Understand patterns, relations and functions.

A.1.A. Recognize and extend patterns: describe and extend simple numeric patterns and change from one representation to another (DOK 2; MA4 1.6)

A.1.B. Create and analyze patterns: describe how simple growing patterns are generated (DOK 2; MA4 1.6)

MO.A.2. Algebraic Relationships: Represent and analyze mathematical situations and structures using algebraic symbols.

A.2.A. Represent mathematical situations: using addition or subtraction, represent a mathematical situation as an expression or number sentence (DOK 2; MA4 1.10)

A.2.B. Describe and use mathematical manipulation: solve problems with whole numbers using the commutative and associative properties of addition (DOK 2; MA4 3.2)

MO.A.3. Algebraic Relationships: Use mathematical models to represent and understand quantitative relationships.

A.3.A. Use mathematical models: model situations that involve addition and subtraction of whole numbers, using pictures, objects or symbols (DOK 2; MA1 1.6)

MO.A.4. Algebraic Relationships: Analyze change in various contexts.

A.4.A. Analyze change: describe qualitative change, such as students growing taller (DOK 2; MA4 1.6)

MO.G.1. Geometric and Spatial Relationships: Specify locations and describe spatial relationships using coordinate geometry and other representational systems.

G.1.A. Describe and use geometric relationships: describe attributes and parts of 2- and 3-dimensional shapes (circle, triangle, trapezoid, rectangle, rhombus, sphere, rectangular prism, cylinder, pyramid) (DOK 2; MA2 1.10)

MO.G.2. Geometric and Spatial Relationships: Specify locations and describe spatial relationships using coordinate geometry and other representational systems.

G.2.A. Use coordinate systems: identify locations with simple relationships on a map (coordinate system) (DOK 1; MA2 3.1)

MO.G.3. Geometric and Spatial Relationships: Apply transformations and use symmetry to analyze mathematical situations.

G.3.A. Use transformations on objects: use manipulatives to model slides and turns (DOK 2; MA2 1.6)

G.3.D. Use symmetry: create shapes that have symmetry (DOK 2; MA2 1.10)

MO.M.1. Measurement: Understand measurable attributes of objects and the units, systems and processes of measurement.

M.1.A. Determine unit of measurement: select an appropriate unit and tool for the attribute being measured (size, temperature, time, weight) and to the nearest inch, centimeter, degree, hour and pound (DOK 2; MA2 3.1)

M.1.C. Tell and use units of time: tell time to the nearest fourth (quarter) hour (DOK 1; MA2 1.10)

M.1.D. Count and compute money: make change from a dollar (DOK 2; MA1 1.10)

MO.M.2. Measurement: Apply appropriate techniques, tools and formulas to determine measurements.

M.2.A. Use standard or non-standard measurement: use standard units of measure (cm, inch) and the inverse relationships between the size and number of units (DOK 2; MA2 1.6)

MO.D.1. Data and Probability: Formulate questions that can be dressed with data and collect, organize, and display relevant data to answer them

D.1.A. Formulate questions: pose questions and gather data about themselves and their surroundings (DOK 3; MA3 1.2)

D.1.B. Classify and organize data: sort and classify items according to their attributes and organize data about the items (DOK 3; MA3 1.8)

D.1.C. Represent and interpret data: represent one-to-many correspondence data using pictures and bar graphs (DOK 2; MA3 1.8)