North Dakota State Standards for Mathematics: Grade 2

ND.2.1. Number and Operation: Students understand and use basic and advanced concepts of number and number systems.

2.1.1. Numbers, Number Relationships, and Number Systems: Count and order numbers up to 1,000

2.1.2. Numbers, Number Relationships, and Number Systems: Count backward from 100

2.1.3. Numbers, Number Relationships, and Number Systems: Count by 2's, 5's, and 10's

2.1.4. Numbers, Number Relationships, and Number Systems: Identify and write numerals to 1,000

2.1.5. Numbers, Number Relationships, and Number Systems: Connect number words and numerals to the quantities they represent up to 100

2.1.6. Numbers, Number Relationships, and Number Systems: Demonstrate, identify, and explain the difference between odd and even numbers using concrete objects or drawings

2.1.7. Numbers, Number Relationships, and Number Systems: Identify place value concepts through the hundreds place

2.1.8. Numbers, Number Relationships, and Number Systems: Use symbols (i.e., >, <, =) to compare whole numbers to 1,000

2.1.9. Numbers, Number Relationships, and Number Systems: Round numbers to tens and hundreds

2.1.10. Numbers, Number Relationships, and Number Systems: Use grade-appropriate terms when communicating about addition and subtraction, i.e., addend, sum, difference

2.1.11. Numbers, Number Relationships, and Number Systems: Represent and explain fractions (i.e., one half, one third, one fourth, one sixth and one eighth) as part of a whole and part of a set

2.1.12. Operations and Their Properties: Select an operation to solve problems involving addition and subtraction of whole numbers

2.1.13. Operations and Their Properties: Demonstrate the inverse relationship between addition and subtraction, i.e., 3+4 = 7, 7-4 = 3

2.1.14. Operations and Their Properties: Model multiplication using equal sets of objects

2.1.15. Operations and Their Properties: Add and subtract two-digit whole numbers between 0 and 100 without regrouping

2.1.16. Computational Fluency and Estimation: Recall addition facts and subtraction facts (0-18)

2.1.17. Computational Fluency and Estimation: Estimate whole number sums and differences

ND.2.2. Geometry and Spatial Sense: Students understand and apply geometric concepts and spatial relationships to represent and solve problems in mathematical and nonmathematical situations.

2.2.1. Two- And Three-Dimensional Shapes, Geometric Properties and Relationships: Recognize geometric shapes and structures in their environment

2.2.2. Two- And Three-Dimensional Shapes, Geometric Properties and Relationships: Identify, describe, and sort three-dimensional objects, i.e., pyramid, cube, rectangular prism, cone, cylinder, and sphere

2.2.3. Two- And Three-Dimensional Shapes, Geometric Properties and Relationships: Predict and demonstrate the results of putting together and taking apart shapes

2.2.4. Transformation and Symmetry: Identify symmetrical shapes and draw their line of symmetry

2.2.5. Transformation and Symmetry: Identify congruent figures from a selection of similar figures

ND.2.3. Data Analysis, Statistics, and Probability: Students use data collection and analysis techniques, statistical methods, and probability to solve problems.

2.3.1. Data Collection, Display, and Interpretation: Sort and classify objects according to their attributes and organize data about the objects, e.g., Venn diagrams, graphs, tables

2.3.2. Data Collection, Display, and Interpretation: Demonstrate that data can be represented in a variety of ways

2.3.3. Data Collection, Display, and Interpretation: Formulate and answer simple questions from data represented by graphs

2.3.4. Predictions, Data Analysis, and Inferences: Record results of activities involving chance (e.g., coin flips, dice rolls) and make reasonable predictions based upon data

2.3.5. Predictions, Data Analysis, and Inferences: Describe the likelihood of an event, e.g., cloudy, it may rain

ND.2.4. Measurement: Students use concepts and tools of measurement to describe and quantify the world.

2.4.1. Measurable Attributes, Measurement Systems and Units: Tell time to the nearest quarter hour and 5 minute interval using digital and analog clocks

2.4.2. Measurable Attributes, Measurement Systems and Units: Distinguish between week days and weekend days

2.4.3. Measurable Attributes, Measurement Systems and Units: Recall the months of the year in order

2.4.4. Measurable Attributes, Measurement Systems and Units: Count mixed coins to $1.00

2.4.5. Measurable Attributes, Measurement Systems and Units: Estimate and measure weight to the nearest pound or kilogram

2.4.6. Measurable Attributes, Measurement Systems and Units: Estimate and measure capacity to the nearest cup or liter

2.4.7. Measurable Attributes, Measurement Systems and Units: Estimate and measure length to the nearest inch, half-inch, foot, or centimeter

2.4.8. Measurable Attributes, Measurement Systems and Units: Estimate and verify a quantity, e.g., marbles in a jar

2.4.9. Measurable Attributes, Measurement Systems and Units: Compare and order given lengths, capacities, weights, or temperatures that are expressed in the same unit of measure

2.4.10. Measurable Attributes, Measurement Systems and Units: Identify the approximate size of basic units, e.g., width of finger is about one centimeter, large soda bottle is two liters, a paper clip weighs one gram

2.4.11. Measurement Tools, Techniques, and Formulas: Select the appropriate units for measuring time, length, weight, and temperature

2.4.12. Measurement Tools, Techniques, and Formulas: Use the symbols for the dollar and cent

ND.2.5. Algebra, Functions, and Patterns: Students use algebraic concepts, functions, patterns, and relationships to solve problems.

2.5.1. Patterns, Relations, and Functions: Extend and create number patterns

2.5.2. Patterns, Relations, and Functions: State the rule that describes a given repeating and growing pattern

2.5.3. Numeric and Algebraic Representations: Solve addition and subtraction equations with unknown numbers, e.g., 2 + i = 5

2.5.4. Mathematical Modeling: Use symbols (i.e., +, -, =, <, >) to write simple number sentences

2.5.5. Mathematical Modeling: Use words, objects, and number sentences to represent addition and subtraction problems