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MST Standard 3 Math: Grade 2
Through the integrated study of number sense and operations, algebra, geometry, measurement, and statistics and probability, students will:
  • understand the concepts of and become proficient with the skills of mathematics;
  • communicate and reason mathematically;
  • become problem solvers by using appropriate tools and strategies;
Algebra
Students will perform algebraic procedures accurately.
Equations and Inequalities
  2.A.1

Use the symbols <, >, = (with and without the use of a number line) to compare whole numbers up to 100

       
Algebra
Students will recognize, use, and represent algebraically patterns, relations, and functions.
Patterns, Relations, and Functions
  2.A.2

Describe and extend increasing or decreasing (+,-) sequences and patterns (numbers or objects up to 100)

       
Communication
Students will organize and consolidate their mathematical thinking through communication.
  2.CM.1

Understand how to organize their thought processes

  2.CM.2

Verbally support their reasoning and answer

       
Communication
Students will communicate their mathematical thinking coherently and clearly to peers, teachers, and others.
  2.CM.3

Share mathematical ideas through the manipulation of objects, drawings, pictures, charts, and symbols in both written and verbal explanations

       
Communication
Students will analyze and evaluate the mathematical thinking and strategies of others.
  2.CM.5

Formulate mathematically relevant questions 

  2.CM.4

Listen to solutions shared by other students

       
Communication
Students will use the language of mathematics to express mathematical ideas precisely.
  2.CM.6

Use appropriate mathematical terms, vocabulary, and language

       
Connections
Students will recognize and use connections among mathematical ideas.
  2.CN.1

Recognize the connections of patterns in their everyday experiences to mathematical ideas

  2.CN.2

Understand and use the connections between numbers and the quantities they represent to solve problems

 
  2.CN.3

Compare the similarities and differences of mathematical ideas

 
       
Connections
Students will understand how mathematical ideas interconnect and build on one another to produce a coherent whole.
  2.CN.6

Understand how mathematical models represent quantitative relationships

  2.CN.4

Understand how models of situations involving objects, pictures, and symbols relate to mathematical ideas

  2.CN.5

Understand meanings of operations and how they relate to one another

 
       
Connections
Students will recognize and apply mathematics in contexts outside of mathematics.
  2.CN.7

Recognize the presence of mathematics in their daily lives

  2.CN.8

Recognize and apply mathematics to solve problems

 
  2.CN.9

Recognize and apply mathematics to objects, pictures and symbols

       
Geometry
Students will use visualization and spatial reasoning to analyze characteristics and properties of geometric shapes.
Shapes
  2.G.1

Experiment with slides, flips, and turns to compare two-dimensional shapes

  2.G.2

Identify and appropriately name two-dimensional shapes: circle, square, rectangle, and triangle (both regular and irregular)

  2.G.3

Compose (put together) and decompose (break apart) two-dimensional shapes

       
Geometry
Students will identify and justify geometric relationships, formally and informally.
Geometric Relationships
  2.G.4

Group objects by like properties

       
Geometry
Students will apply transformations and symmetry to analyze problem solving situations.
Transformational Geometry
  2.G.6

Explore line symmetry

  2.G.5

Explore and predict the outcome of slides, flips, and turns of two-dimensional shapes 

       
Measurement
Students will determine what can be measured and how, using appropriate methods and formulas.
Units of Measurement
  2.M.1

Use non-standard and standard units to measure both vertical and horizontal lengths 

  2.M.2

Use a ruler to measure standard units (including whole inches and whole feet)

  2.M.3

Compare and order objects according to the attribute of length 

  2.M.4

Recognize mass as a qualitative measure (e.g., Which is heavier? Which is lighter?)

  2.M.5

Compare and order objects, using lighter than and heavier than

       
Measurement
Students will use units to give meaning to measurements.
Units
  2.M.6

Know and recognize coins (penny, nickel, dime, quarter) and bills ($1, $5, $10, and $20) 

  2.M.7

Recognize the whole dollar notation as $1, etc. 

  2.M.8

Identify equivalent combinations to make one dollar

  2.M.9

Tell time to the half hour and five minutes using both digital and analog clocks

 
       
Measurement
Students will develop strategies for estimating measurements.
Estimation
  2.M.10

Select and use standard (customary) and non-standard units to estimate measurements 

       
Number Sense and Operations
Students will understand numbers, multiple ways of representing numbers, relationships among numbers, and number systems.
Number Systems
  2.N.1

Skip count to 100 by 2's, 5's, 10's

  2.N.2

Count back from 100 by 1's, 5's, 10's using a number chart

  2.N.3

Skip count by 3's to 36 for multiplication readiness

  2.N.4

Skip count by 4's to 48 for multiplication readiness

  2.N.5

Compare and order numbers to 100

  2.N.6

Develop an understanding of the base ten system:10 ones = 1 ten10 tens = 1 hundred10 hundreds = 1 thousand

  2.N.7

Use a variety of strategies to compose and decompose two-digit numbers

  2.N.8

Understand and use the commutative property of addition

  2.N.9

Name the number before and the number after a given number, and name the number(s) between two given numbers up to 100 (with and without the use of a number line or a hundreds chart)

  2.N.10

Use and understand verbal ordinal terms

  2.N.11

Read written ordinal terms (first through ninth) and use them to represent ordinal relations

  2.N.12

Use zero as the identity element for addition

  2.N.13

Recognize the meaning of zero in the place value system (0-100)

 
       
Number Sense and Operations
Students will understand numbers, multiple ways of representing numbers, relationships among numbers, and number systems.
Number Theory
  2.N.14

Use concrete materials to justify a number as odd or even

 
       
Number Sense and Operations
Students will understand meanings of operations and procedures, and how they relate to one another.
Operations
  2.N.16

Use a variety of strategies to solve addition and subtraction problems using one- and two-digit numbers with and without regrouping

  2.N.17

Demonstrate fluency and apply addition and subtraction facts up to and including 18 

  2.N.18

Use doubling to add 2-digit numbers

  2.N.19

Use compensation to add 2-digit numbers

 
  2.N.20

Develop readiness for multiplication by using repeated addition

  2.N.21

Develop readiness for division by using repeated subtraction, dividing objects into groups (fair share)

  2.N.15

Determine sums and differences of number sentences by various means (e.g., families, related facts, inverse operations, addition doubles, and doubles plus one)

       
Number Sense and Operations
Students will compute accurately and make reasonable estimates.
Estimation
  2.N.22

Estimate the number in a collection to 100 and then compare by counting the actual items in the collection

 
       
Problem Solving
Students will build new mathematical knowledge through problem solving.
  2.PS.2

Interpret information correctly, identify the problem, and  generate possible solutions

  2.PS.1

Explore, examine, and make observations about a social problem or mathematical situation

       
Problem Solving
Students will solve problems that arise in mathematics and in other contexts.
  2.PS.4

Formulate problems and solutions from everyday situations (e.g., counting the number of children in the class, using the calendar to teach counting).

  2.PS.3

Act out or model with manipulatives activities involving mathematical content from literature and/or story telling

       
Problem Solving
Students will apply and adapt a variety of appropriate strategies to solve problems.
  2.PS.5

Use informal counting strategies to find solutions

 
  2.PS.6

Experience teacher-directed questioning process to understand problems

  2.PS.7

Compare and discuss ideas for solving a problem with teacher and/or students to justify their thinking

  2.PS.8

Use manipulatives (e.g., tiles, blocks) to model the action in problems

  2.PS.9

Use drawings/pictures to model the action in problems

 
       
Problem Solving
Students will monitor and reflect on the process of mathematical problem solving.
  2.PS.10

Explain to others how a problem was solved, giving strategies and justifications

       
Reasoning and Proof
Students will recognize reasoning and proof as fundamental aspects of mathematics.
  2.RP.1

Understand that mathematical statements can be true or false

 
  2.RP.2

Recognize that mathematical ideas need to be supported by evidence

 
       
Reasoning and Proof
Students will make and investigate mathematical conjectures.
  2.RP.3

Investigate the use of knowledgeable guessing as a mathematical tool

 
  2.RP.4

Explore guesses, using a variety of objects and manipulatives

 
       
Reasoning and Proof
Students will develop and evaluate mathematical arguments and proofs.
  2.RP.5

Justify general claims, using manipulatives

 
  2.RP.6

Develop and explain an argument verbally or with objects

  2.RP.7

Listen to and discuss claims other students make

       
Reasoning and Proof
Students will select and use various types of reasoning and methods of proof.
  2.RP.8

Use trial and error strategies to verify claims

       
Representation
Students will create and use representations to organize, record, and communicate mathematical ideas.
  2.R.1

Use multiple representations, including verbal and written language, acting out or modeling a situation, drawings, and/or symbols as representations  

  2.R.2

Share mental images of mathematical ideas and understandings

 
  2.R.3

Use standard and nonstandard representations 

       
Representation
Students will select, apply, and translate among mathematical representations to solve problems.
  2.R.4

Connect mathematical representations with problem solving

       
Representation
Students will use representations to model and interpret physical, social, and mathematical phenomena.
  2.R.5

Use mathematics to show and understand physical phenomena (e.g., estimate and represent the number of apples in a tree

  2.R.6

Use mathematics to show and understand social phenomena (e.g., count and represent sharing cookies between friends)

  2.R.7

Use mathematics to show and understand mathematical phenomena (e.g., draw pictures to show a story problem or show number value using fingers on your hand)

       
Statistics and Probability
Students will collect, organize, display, and analyze data.
Collection of Data
  2.S.1

Formulate questions about themselves and their surroundings

  2.S.2

Collect and record data (using tallies) related to the question

       
Statistics and Probability
Students will collect, organize, display, and analyze data.
Organization and Display of Data
  2.S.3

Display data in pictographs and bar graphs using concrete objects or a representation of the object

       
Statistics and Probability
Students will collect, organize, display, and analyze data.
Analysis of Data
  2.S.4

Compare and interpret data in terms of describing quantity (similarity or differences)

       
Statistics and Probability
Students will make predictions that are based upon data analysis.
Predictions from Data
  2.S.5

Discuss conclusions and make predictions from graphs

       
 
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