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3.NS
Number Sense
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3.NS.1.0
Students understand the place value of whole numbers:
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3.NS.1.1
Count, read, and write whole numbers to 10,000.
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3.NS.1.2
Compare and order whole numbers to 10,000.
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3.NS.1.3
Identify the place value for each digit in numbers to 10,000.
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3.NS.1.4
Round off numbers to 10,000 to the nearest ten, hundred, and thousand.
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3.NS.1.5
Use expanded notation to represent numbers (e.g., 3,206 = 3,000 + 200 + 6).
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3.NS.2.0
Students calculate and solve problems involving addition, subtraction, multiplication, and division:
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3.NS.2.1
Find the sum or difference of two whole numbers between 0 and 10,000.
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3.NS.2.2
Memorize to automaticity the multiplication table for numbers between 1 and 10.
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3.NS.2.3
Use the inverse relationship of multiplication and division to compute and check results.
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3.NS.2.4
Solve simple problems involving multiplication of multidigit numbers by one-digit numbers (3,671 x 3 = __).
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3.NS.2.5
Solve division problems in which a multidigit number is evenly divided by a one-digit number (135 รท 5 = __).
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3.NS.2.6
Understand the special properties of 0 and 1 in multiplication and division.
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3.NS.2.7
Determine the unit cost when given the total cost and number of units.
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3.NS.2.8
Solve problems that require two or more of the skills mentioned above.
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3.NS.3.0
Students understand the relationship between whole numbers, simple fractions, and decimals:
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3.NS.3.1
Compare fractions represented by drawings or concrete materials to show equivalency and to add and subtract simple fractions in context (e.g., 1/2 of a pizza is the same amount as 2/4 of another pizza that is the same size; show that 3/8 is larger than 1/4).
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3.NS.3.2
Add and subtract simple fractions (e.g., determine that 1/8 + 3/8 is the same as 1/2).
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3.NS.3.3
Solve problems involving addition, subtraction, multiplication, and division of money amounts in decimal notation and multiply and divide money amounts in decimal notation by using whole-number multipliers and divisors.
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3.NS.3.4
Know and understand that fractions and decimals are two different representations of the same concept (e.g., 50 cents is 1/2 of a dollar, 75 cents is 3/4 of a dollar).
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3.AF
Algebra and Functions
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3.AF.1.0
Students select appropriate symbols, operations, and properties to represent, describe, simplify, and solve simple number relationships:
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3.AF.1.1
Represent relationships of quantities in the form of mathematical expressions, equations, or inequalities.
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3.AF.1.2
Solve problems involving numeric equations or inequalities.
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3.AF.1.3
Select appropriate operational and relational symbols to make an expression true (e.g., if 4 __ 3 = 12, what operational symbol goes in the blank?).
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3.AF.1.4
Express simple unit conversions in symbolic form (e.g., __ inches = __ feet x 12).
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3.AF.1.5
Recognize and use the commutative and associative properties of multiplication (e.g., if 5 x 7 = 35, then what is 7 x 5? and if 5 x 7 x 3 = 105, then what is 7 x 3 x 5?).
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3.AF.2.0
Students represent simple functional relationships:
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3.AF.2.1
Solve simple problems involving a functional relationship between two quantities (e.g., find the total cost of multiple items given the cost per unit).
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3.AF.2.2
Extend and recognize a linear pattern by its rules (e.g., the number of legs on a given number of horses may be calculated by counting by 4s or by multiplying the number of horses by 4).
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3.MG
Measurement and Geometry
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3.MG.1.0
Students choose and use appropriate units and measurement tools to quantify the properties of objects:
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3.MG.1.1
Choose the appropriate tools and units (metric and U.S.) and estimate and measure the length, liquid volume, and weight/mass of given objects.
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3.MG.1.2
Estimate or determine the area and volume of solid figures by covering them with squares or by counting the number of cubes that would fill them.
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3.MG.1.3
Find the perimeter of a polygon with integer sides.
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3.MG.1.4
Carry out simple unit conversions within a system of measurement (e.g., centimeters and meters, hours and minutes).
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3.MG.2.0
Students describe and compare the attributes of plane and solid geometric figures and use their understanding to show relationships and solve problems:
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3.MG.2.1
Identify, describe, and classify polygons (including pentagons, hexagons, and octagons).
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3.MG.2.2
Identify attributes of triangles (e.g., two equal sides for the isosceles triangle, three equal sides for the equilateral triangle, right angle for the right triangle).
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3.MG.2.3
Identify attributes of quadrilaterals (e.g., parallel sides for the parallelogram, right angles for the rectangle, equal sides and right angles for the square).
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3.MG.2.4
Identify right angles in geometric figures or in appropriate objects and determine whether other angles are greater or less than a right angle.
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3.MG.2.5
Identify, describe, and classify common three-dimensional geometric objects (e.g., cube, rectangular solid, sphere, prism, pyramid, cone, cylinder).
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3.MG.2.6
Identify common solid objects that are the components needed to make a more complex solid object.
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3.SDAP
Statistics, Data Analysis, and Probability
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3.SDAP.1.0
Students conduct simple probability experiments by determining the number of possible outcomes and make simple predictions:
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3.SDAP.1.1
Identify whether common events are certain, likely, unlikely, or improbable.
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3.SDAP.1.2
Record the possible outcomes for a simple event (e.g., tossing a coin) and systematically keep track of the outcomes when the event is repeated many times.
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3.SDAP.1.3
Summarize and display the results of probability experiments in a clear and organized way (e.g., use a bar graph or a line plot).
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3.SDAP.1.4
Use the results of probability experiments to predict future events (e.g., use a line plot to predict the temperature forecast for the next day).
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3.MR
Mathematical Reasoning
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3.MR.1.0
Students make decisions about how to approach problems:
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3.MR.1.1
Analyze problems by identifying relationships, distinguishing relevant from irrelevant information, sequencing and prioritizing information, and observing patterns.
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3.MR.1.2
Determine when and how to break a problem into simpler parts.
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3.MR.2.0
Students use strategies, skills, and concepts in finding solutions:
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3.MR.2.1
Use estimation to verify the reasonableness of calculated results.
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3.MR.2.2
Apply strategies and results from simpler problems to more complex problems.
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3.MR.2.3
Use a variety of methods, such as words, numbers, symbols, charts, graphs, tables, diagrams, and models, to explain mathematical reasoning.
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3.MR.2.4
Express the solution clearly and logically by using the appropriate mathematical notation and terms and clear language; support solutions with evidence in both verbal and symbolic work.
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3.MR.2.5
Indicate the relative advantages of exact and approximate solutions to problems and give answers to a specified degree of accuracy.
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3.MR.2.6
Make precise calculations and check the validity of the results from the context of the problem.
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3.MR.3.0
Students move beyond a particular problem by generalizing to other situations:
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3.MR.3.1
Evaluate the reasonableness of the solution in the context of the original situation.
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3.MR.3.2
Note the method of deriving the solution and demonstrate a conceptual understanding of the derivation by solving similar problems.
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3.MR.3.3
Develop generalizations of the results obtained and apply them in other circumstances.
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