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2.1
Number and Operation
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Number, Number Relationships, and Number Systems
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2.1.1
Count and order numbers up to 1,000
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2.1.2
Count backward from 100
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2.1.3
Count by 2's, 5's, and 10's
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2.1.4
Identify and write numerals to 1,000
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2.1.5
Connect number words and numerals to the quantities they represent up to 100
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2.1.6
Demonstrate, identify, and explain the difference between odd and even numbers using concrete objects or drawings
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2.1.7
Identify place value concepts through the hundreds place
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2.1.8
Use symbols (i.e., >, <, =) to compare whole numbers to 1,000
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2.1.9
Round numbers to tens and hundreds
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2.1.10
Use grade-appropriate terms when communicating about addition and subtraction; i.e., addend, sum, difference
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2.1.11
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
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Operations and Their Properties
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2.1.12
Select an operation to solve problems involving addition and subtraction of whole numbers
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2.1.13
Demonstrate the inverse relationship between addition and subtraction; i.e., 3+4 = 7, 7-4 = 3
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2.1.14
Model multiplication using equal sets of objects
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2.1.15
Add and subtract two-digit whole numbers between 0 and 100 without regrouping
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Computational Fluency and Estimation
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2.1.16
Recall addition facts and subtraction facts (0- 18)
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2.1.17
Estimate whole number sums and differences
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2.2
Geometry and Spatial Sense
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Two- and Three-Dimensional Shapes, Geometric Properties and Relationships
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2.2.1
Recognize geometric shapes and structures in their environment
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2.2.2
Identify, describe, and sort three-dimensional objects; i.e., pyramid, cube, rectangular prism, cone, cylinder, and sphere
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2.2.3
Predict and demonstrate the results of putting together and taking apart shapes
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Transformation and Symmetry
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2.2.4
Identify symmetrical shapes and draw their line of symmetry
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2.2.5
Identify congruent figures from a selection of similar figures
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2.3
Data Analysis, Statistics, and Probability
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Data Collection, Display, and Interpretation
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2.3.1
Sort and classify objects according to their attributes and organize data about the objects; e.g., Venn diagrams, graphs, tables
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2.3.2
Demonstrate that data can be represented in a variety of ways
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2.3.3
Formulate and answer simple questions from data represented by graphs
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Predictions, Data Analysis and Inferences
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2.3.4
Record results of activities involving chance (e.g., coin flips, dice rolls) and make reasonable predictions based upon data
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2.3.5
Describe the likelihood of an event; e.g., cloudy, it may rain
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2.4
Measurement
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Measurable Attributes, Measurement Systems and Units
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2.4.1
Tell time to the nearest quarter hour and 5 minute interval using digital and analog clocks
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2.4.2
Distinguish between week days and weekend days
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2.4.3
Recall the months of the year in order
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2.4.4
Count mixed coins to $1.00
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2.4.5
Estimate and measure weight to the nearest pound or kilogram
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2.4.6
Estimate and measure capacity to the nearest cup or liter
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2.4.7
Estimate and measure length to the nearest inch, half-inch, foot, or centimeter
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2.4.8
Estimate and verify a quantity; e.g., marbles in a jar
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2.4.9
Compare and order given lengths, capacities, weights, or temperatures that are expressed in the same unit of measure
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2.4.10
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
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Measurement Tools, Techniques and Formulas
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2.4.11
Select the appropriate units for measuring time, length, weight, and temperature
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2.4.12
Use the symbols for the dollar and cent
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2.5
Algebra, Functions, and Patterns
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Patterns, Relations, and Functions
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2.5.1
Extend and create number patterns
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2.5.2
State the rule that describes a given repeating and growing pattern
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Numeric and Algebraic Representations
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2.5.3
Solve addition and subtraction equations with unknown numbers; e.g., 2 + __ = 5
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Mathematical Modeling
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2.5.4
Use symbols (i.e., +, -, =, <, >) to write simple number sentences
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2.5.5
Use words, objects, and number sentences to represent addition and subtraction problems
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