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Academic Standards

Grade 2 Math Standards

Standard

Instruction and Assessment

STANDARD 1. The student understands and applies the concepts and procedures of mathematics

1.1 NUMBER SENSE

* Uses physical models to demonstrate the relationship between ones, tens, and hundreds, and identifies them appropriately as place values
* Counts by tens and hundreds to 1000
* Reads and writes numerals to 1000
* Uses models to represent halves, thirds, and fourths of objects and sets of objects
* Creates and uses strategies to solve basic addition and subtraction facts (doubles, doubles plus one, doubles plus two, and their reverses)
* Describes and compares strategies to solve addition and subtraction computation problems
* Adds and subtracts 2- and 3-digit numbers with and without regrouping
* Describes and justifies reasonableness of an estimate to an addition or subtraction problem
* Uses physical models, diagrams, and/or acts out problems involving real-life multiplication and division situations
* Uses appropriate number sense vocabulary

1.2 MEASUREMENT

* Estimates and measures area and perimeter of regular 2-dimensional figures (e.g., squares and rectangles)
* Estimates and measures length, area, weight/mass, capacity, time, and temperature using referents in familiar settings from other disciplines to the nearest whole unit
* Uses standard units of measurement of length, area, weight, capacity, time, and temperature in familiar settings from other disciplines
* Selects appropriate unit of measurement for given objects/situations
* Describes and justifies own methods of estimating involving realistic measurement situations (e.g., time, money, length)
* Uses cent and dollar notation when relating values of coins, up to $1.00
* Counts mixed coins to $1.00
* Uses appropriate measurement vocabulary

1.3 GEOMETRIC SENSE

* Sorts, classifies, and uses 2- and 3-dimensional geometric figures in order to solve problems in real-life settings
* Uses manipulatives and drawings to describe geometric transformations (e.g., slides, flips, and turns)
* Uses appropriate geometric vocabulary to compare and contrast figures
* Uses manipulatives to construct models of shapes that are similar, congruent, or symmetric

1.4 PROBABILITY AND STATISTICS

* Describes possible outcomes in a simple experiment where outcomes are not equally likely
* Collects, organizes, and displays data in familiar situations from other disciplines using tables, bar graphs, pictographs, and Venn diagrams
* Describes data using words like "most often" and "least often"
* Uses appropriate vocabulary for probability and statistics

1.5 ALGEBRAIC SENSE

* Represents patterns symbolically
* Orally describes the functional relationship (e.g., guess my rule) when given pairs of numbers
* Completes number sentences using +, -,?=, <, >
* Uses appropriate vocabulary for algebraic sense

Instructional Support Materials

* Investigations in Number, Data, and Space
* Scott Foresman Addison Wesley Mathematics

Instructional Strategies

1.1
* Using Classroom Routines and Calendar
* Exploring addition combinations to 20
* Using 100 Chart to explore number patterns, to compare and combine numbers
* Breaking apart numbers & recombining
* Composing and decomposing numbers
* Using landmark numbers (10, 25, 50, 75, 100, 500, 1000)
* Exploring fact strategies - counting on and back, doubles, doubles + 1, turnaround facts, using doubles to subtract, thinking addition to subtract
* Exploring fact families
* Exploring skip count

1.2
* Exploring measurable attributes
* Exploring perimeter/area relationships
* Creating authentic opportunities to make change (class story, lunch money, etc)

1.3
* Sorting and classifying
* Exploring pattern blocks and mirrors
* Creating geoboard shapes

1.4
* Predicting
* Creating surveys
* Using graphic organizers
* Word Wall
* Fair and unfair spinner games

1.5
* Exploring patterns (constructing, recording, describing, extending, comparing)
* Looking for and representing patterns
* Representing situations with symbols

Assessment

* CBA's
* Investigations Assessment Sourcebook
* Scott Foresman Addison Wesley Assessment Sourcebook

Standard 2. The student understands the meaning of what is read

2.1 Investigates situations

2.2 Formulates questions and defines the problem

2.3 Constructs solutions

* Uses a variety of strategies and approaches to solve problems (e.g., physical models, diagrams, act out)
* Identifies missing information
* Defines problems in familiar situations (e.g., How much time do we have before P.E.?)
* Organizes relevant information to solve a problem (e.g., makes a Venn diagram to determine which of three different recipes each classmate likes)
* Selects appropriate tools to measure length, area, weight/mass, and capacity/volume

Instructional Support Materials

* Investigations in Number, Data, and Space
* Scott Foresman Addison Wesley Mathematics

Instructional Strategies

* Exploring problem solving strategies
* Use objects/act it out
* Draw a picture
* Guess and check
* Use or look for a pattern
* Plan/Solve/Look back

STANDARD 3. The student uses mathematical reasoning

3.1 Analyzes information

3.2 Predicts results and makes inferences

3.3 Draws conclusions and verifies results

* Interprets and compares information in familiar situations (e.g., determines which day of the week was the hottest)
* Validates own thinking using models and patterns (e.g., uses square tiles to illustrate the area of a rectangle)
* Makes and tests conjectures based on collected data (e.g., given a bag containing 4 cubes in 2 different colors, guesses how many of each color there are after picking a cube 10 times with replacement), and adjusts using supporting or contradictory results
* Checks for reasonableness of answers (e.g., after computing the sum of two numbers, uses estimation to see if the answer makes sense)

Instructional Support Materials

* Investigations in Number, Data, and Space
* Scott Foresman Addison Wesley Mathematics

Instructional Strategies

* Classifying/sorting
* Comparing/contrasting
* Finding/extending/using patterns
* Making predictions

Assessment

* CBA's
* Investigations Assessment Sourcebook
* Scott Foresman Addison Wesley Assessment Sourcebook

STANDARD 4. The student communicates knowledge and understanding in both everyday and mathematical language

4.1 Gathers information

4.2 Organizes and interprets information

4.3 Represents and shares information

* Extracts mathematical information from pictures, diagrams, and physical models (e.g., explores area and perimeter of a variety of rectangles made with square tiles)
* Organizes and clarifies mathematical information orally and in writing (example: describes strategy for solving a subtraction problem in a math journal)
* Expresses ideas using models and/or graphs (e.g., uses collections of objects to demonstrate how to determine if a number is even or odd)

Instructional Support Materials

* Investigations in Number, Data, and Space
* Scott Foresman Addison Wesley Mathematics

Instructional Strategies

* Reading for math
* Writing about it/journal
* Think/Pair/Share
* Working in groups

Assessment

* CBA's
* Investigations Assessment Sourcebook
* Scott Foresman Addison Wesley Assessment Sourcebook

STANDARD 5. The student understands how mathematical ideas connect within mathematics, to other subject areas, and to real-life situations

5.1 Relates concepts and procedures within mathematics

5.2 Relates mathematical concepts and procedures to other disciplines

5.3 Relates mathematical concepts and procedures to real-life situations

* Makes connection between different mathematical content areas (e.g., uses physical models to explore the relationship between multiplication and division situations)
* Recognizes mathematical patterns and ideas in familiar situations in other disciplines (e.g., compares average monthly temperatures)
* Gives examples of how mathematics is used in everyday life

Instructional Support Materials

* Investigations in Number, Data, and Space
* Scott Foresman Addison Wesley Mathematics

Instructional Strategies

* Relating/using math outside of school
* Collect/analyze/represent data from home
* Using addition to solve subtraction problems, multiplication to solve division problems

Assessment

* CBA's
* Investigations Assessment Sourcebook
* Scott Foresman Addison Wesley Assessment Sourcebook

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