IXL Math - DoDEA third-grade math standards

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DoDEA

Skills available for DoDEA third-grade math standards

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3.M1 Numbers and Operations

3.M1a Use place values to read, model, and interpret whole numbers through thousands and decimals through hundredths; explain the values of the digits;
3.M1b Explain the relationship of commonly used fractions to their equivalent forms, and explain their relationship to a whole;
3.M1c Identify and describe numbers according to their characteristics such as even, odd, multiples, and/or factors;
- Numbers and comparing: Even and odd I (Third grade - A.4)
- Numbers and comparing: Even and odd II (Third grade - A.5)
3.M1d Use mathematical language and symbols to compare and order numbers and objects;
3.M1e Explain and use addition, subtraction, multiplication, and division to show equivalent whole numbers;
3.M1f Explain the relationship between multiplication and division as inverse operations.
- Properties: Relate multiplication and division (Third grade - H.8)
3.M1g Use properties of operations on whole numbers, i.e., commutativity and associativity;
3.M1h Explain and perform addition and subtraction for two- and three-digit numbers and multiplication of one- and two-digit numbers;
3.M1i Model and explain multiplication and division using appropriate symbols and strategies;
3.M1j Develop and use strategies to estimate the results of whole number computations and judge the reasonableness of the computed results;
3.M1k Solve non-routine multi-step problems using appropriate tools and strategies involving addition, subtraction, and multiplication.
- Mixed operations: Multi-step word problems (Third grade - G.2)
- Mixed operations: Missing operators (Third grade - G.3)

3.M2 Algebra

3.M2a Identify, describe, and extend the rules of multiplicative and growing patterns;
- Patterns: Growing patterns (Second grade - D.2)
- Multiplication: Multiplication patterns over increasing place values (Third grade - E.7)
3.M2b Make predictions, identify relationships, and solve problems by using the concept of patterns;
3.M2c Express mathematical relationships as equations or inequalities with appropriate symbols;
3.M2d Solve open sentences by representing an expression in more than one way using the commutative and associative properties for multiplication;
- Properties: Solve using properties of multiplication (Third grade - H.6)
3.M2e Organize and order data in labeled tables to discover patterns and rules;
3.M2f Represent mathematical situations to solve problems using equations or inequalities;
3.M2g Recognize patterns and make predictions based on collected data;
3.M2h Describe the difference between qualitative and quantitative changes.

3.M3 Geometry

3.M3a Describe properties of two- and three- dimensional shapes using mathematical terminology;
3.M3b Identify and describe the relative size of angles with right angles as a reference;
- Geometry: Angles: greater than, less than, or equal to a right angle (Third grade - P.9)
3.M3c Use coordinate systems to specify locations and describe paths;
- Graphs: Coordinate graphs I (Third grade - N.1)
- Graphs: Coordinate graphs II (Third grade - N.2)
3.M3d Verify symmetry by drawing lines of symmetry in shapes and objects;
- Geometry: Symmetry (Third grade - P.3)
3.M3e Build and draw geometric shapes.

3.M4 Measurement

3.M4a Explain the need for using standard units when making measurements;
- Measurement: Which customary unit is appropriate? (Third grade - O.3)
- Measurement: Which metric unit is appropriate? (Third grade - O.9)
3.M4b Explore standard units within the customary and metric systems and describe the relationship of units within each system;
3.M4c Use accurate vocabulary to describe measurement, i.e., meters for length, degrees for temperature, minutes to hours, etc.;
- Measurement: Which customary unit is appropriate? (Third grade - O.3)
- Measurement: Which metric unit is appropriate? (Third grade - O.9)
3.M4d Use counting techniques to explain how to find the area and perimeter of regular shapes;
- Geometry: Perimeter (Third grade - P.6)
- Geometry: Area (Third grade - P.7)
3.M4e Estimate measurements using a personal reference;
3.M4f Uses appropriate measurement tools and techniques to construct a figure;
3.M4g Select and apply appropriate standard units and tools to compare the measurable attributes of a variety of objects;
3.M4h Develop strategies for estimating the perimeter of irregular shapes;
3.M4i Read thermometers accurately;
- Measurement: Read a thermometer (Third grade - O.1)
- Measurement: Reasonable temperature (Third grade - O.2)
3.M4j Use models to estimate perimeter and area;
3.M4k Calculate the area and perimeter of regular shapes;
- Geometry: Perimeter (Third grade - P.6)
- Geometry: Area (Third grade - P.7)
3.M4l Tell time to the nearest minute and measure elapsed time using a clock or calendar.

3.M5 Data Analysis and Probability

3.M5a Develop and implement a plan to collect and organize data to address a given question;
- Graphs: Venn diagrams (Third grade - N.7)
3.M5b Translate information from one data representation to another, i.e., graph to table;
3.M5c Support a conclusion or a prediction with evidence from data;
3.M5d Organize and graphically display data using a variety of categories and intervals;
3.M5e Describe the characteristics of graphically represented data, i.e., identify the mode;
- Probability and statistics: Mean, median, mode, and range (Third grade - S.2)
- Probability and statistics: Interpret charts to find mean, median, mode, and range (Third grade - S.3)
3.M5f Examine graphs and tables that display the same set of data to identify what each representation contributes to the interpretation of data and conclusions drawn;
3.M5g Select a question for study, predict possible outcomes, conduct simple experiments, and compare results to predictions.
- Probability and statistics: Certain, probable, unlikely, and impossible (Third grade - S.1)
- Probability and statistics: Combinations (Third grade - S.4)