Grade 2 Math Maps 2010

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st QUARTER Operations and Algebraic Thinking Work with equal groups of objects to gain foundations for multiplication. Determine whether a group of objects (up to 0) has an odd or even number of members, e.g., by pairing objects or counting them by s; write an equation to express an even number as a sum of two equal addends. Numbers & Operations in Base Ten Understand place value. Count within 000; skip count by 5s, 0s, and 00s. Patterns, Functions, & Algebra 5 Recognize and classify numbers as even or odd Understand equivalence and extend the concept to situations involving symbols; e.g., 4+5=9 and 9-4+5 and 4+5=+6. Patterns, Functions, & Algebra Extend simple number patterns (both repeating and growing patterns) and create similar patterns using different objects such as using physical materials or shapes to represent numerical patterns. Use patterns to make generalizations and predictions; e.g., determine a missing element in a pattern Create new patterns with consistent rules or plans, and describe the rule or general plan of existing patterns. Number, Number sense, and Operations Use place value understanding and properties of operations to add and subtract. 9 Model and use the commutative property for addition. NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

st QUARTER 8 Mentally add 0 or 00 to a given number 00-900, and mentally subtract 0 or 00 from a given number 00-900. Use place value concepts to represent, compare, and order whole numbers using physical models, numerals, and words, with ones, tens, and hundreds. For example: a) Recognize 0 can mean 0 ones or a single entity ( ten) through physical models and trading games. Add and subtract multiples of 0. Measurement and Data Data Analysis and Probability 8 Use physical models and pictures to represent possible arrangements of or objects. Read and construct simple timelines to sequence events. Geometry Geometry and Spatial Sense Reason with shapes and their attributes. Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. Identify, describe, compare, and sort threedimensional objects (i.e., cubes, spheres, prisms, cones, cylinders and pyramids) according to the shape of the faces or the number of faces, edges, or vertices. Predict what new shapes will be formed by combining or cutting apart existing shapes. Recognize two-dimensional shapes and threedimensional objects from different positions. NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

nd QUARTER Number and Operations in Base Ten Understand place value. Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: 00 can be thought of as a bundle of ten tens called a hundred. Measurement and Data Data Analysis and Probability Represent and interpret data. Pose questions, use observations, interviews, and surveys to collect data, and organize data in charts, picture graphs, and bar graphs. 0 Draw a picture graph and a bar graph (with singleunit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. 4 Read, interpret and make comparisons and predictions from data represented in charts, line plots, picture graphs and bar graphs. Write a few sentences to describe and compare categories of data represented in a chart or graph, and make statements about the data as a whole. 6 Recognize that data may vary from one population to another; e.g., favorite TV shows of students and of parents. 7 List some of the possible outcomes of a simple NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

nd QUARTER Measurement and Data Measure and estimate lengths in standard units. 4 Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes. Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen. Estimate lengths using units of inches, feet, centimeters, and meters. Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit. Represent and interpret data. 9 Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. experiment, and predict whether given outcomes are more, less or equally likely to occur. Measurement 5 Identify and select appropriate units of measure for: a. length centimeters, meters, inches, feet or yards; b. volume (capacity) liters, cups, pints or quarts; c. weight grams, ounces or pounds; d. time hours, half-hours, quarter-hours or minutes and time designations, a.m. or p.m. Establish personal or common referents for units of measure to make estimates and comparisons; e.g., the width of a finger is a centimeter, a large bottle of soda pop is liters, a small paper clip weighs about one gram. Describe and compare the relationships among units of measure, such as centimeters and meters; inches, feet and yards; cups, pints and quarts; ounces and pounds; and hours, half-hours, and quarter-hours; e.g., how many inches in a foot? Estimate and measure the length and weight of common objects, using metric and U.S. customary units, accurate to the nearest unit. Geometry and Spatial Sense 4 Identify and determine whether two-dimensional shapes are congruent (same shape and size) or similar (same shape different size) by copying or 4 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

nd QUARTER Show the measurements by making a line plot, where the horizontal scale is marked off in wholenumber units. 5 using superposition (lay one thing on top of another). Create and identify two-dimensional figures with line symmetry; e.g., what letter shapes, logos, polygons are symmetrical? 5 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math Measurement & Data Assessmen ts Work with time and money. 8 4 Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and symbols appropriatel y. Example: If you have dimes and pennies, how many cents do you have? Compare two threedigit numbers based on meanings of the hundreds, tens, and Number, Number Sense & Operations Count money and make change using coins and a dollar bill. 4 Represent and write the value of money using the sign and in decimal form when using the $ sign. Demonstrate multiple strategies for adding and subtracting - or -digit whole numbers, such as: a. compatible numbers; b. compensatory numbers; c. informal use of commutative and associative properties of addition. 6 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math ones digits, using >, =, and < symbols to record the results of comparison s. Assessmen ts Work with time and money. 5 Use addition and subtraction within 00 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a 7 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math symbol for the unknown number to represent the problem. Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points correspondi 6 ng to the numbers 0,,,..., and represent wholenumber sums and differences within 00 on a number line diagram. Assessmen ts 8 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math Assessmen ts Work with time and money. Tell and write time from analog and digital clocks to 7 the nearest five minutes, using a.m. and p.m. Operations and Algebraic Thinking Represent and solve problems involving addition and subtraction. Use addition and subtraction within 00 to solve one- and two-step word problems involving situations of adding to, Mathematical Processes 5 Identify untrue or inappropriate statements about a given set of data. Patterns, Functions, & Algebra Use symbols to represent unknown quantities and identify values for symbols in an expression or equation using addition and 6 = 0, - = 4. 9 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. Assessmen ts Add and subtract within 0. 4 Use objects, pictures, numbers and other symbols to represent a problem situation. Fluently add and subtract within 0 Number Sense & Operations 0 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math using mental strategies. By end of Grade, know from memory all sums of two one-digit numbers. Assessmen ts 0 Demonstrate fluency in addition facts with addends through 9 and corresponding subtractions; e.g., 9 + 9 = 8, 8 9 = 9. Number and Operations in Base Ten Use place value understanding and properties of operations to add and subtract. Add up to four twodigit numbers using 6 strategies based on place value and properties Measurement 4 Tell time to the nearest minute interval on digital and to the nearest 5 minute interval on analog (dial) timepieces. NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

rd QUARTER Common Core Math of operations. Assessmen ts Identify and select appropriate units of measure for: a. length centimeters, meters, inches, feet or yards; b. volume (capacit NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

4 th QUARTER Operations and Algebraic Thinking Work with equal groups of objects to gain foundations for multiplication. Patterns, Functions, & Algebra 4 Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. 5 Understand equivalence and extend the concept to situations involving symbols; e.g., 4 + 5 = 9 and 9 = 4 + 5, and 4 + 5 = + 6 = + 7 Describe qualitative and quantitative changes, especially those involving addition and subtraction; e.g., a student growing taller versus a student growing two inches in one year. Number Sense & Algebra 7 Model, represent and explain multiplication as repeated addition, rectangular arrays and skip counting. Number and Operations in Base Ten Use place value understanding and properties of operations to add and subtract. Read and write numbers to 000 using base-ten numerals, number names, and expanded form. Use place value understanding and properties of operations to add and subtract. 8 b Model, represent, and explain division as sharing equally and repeated subtraction. Read and write -digit numerals (e.g., 4 as two hundred forty three, 4 tens and ones, or hundreds and 4 ones, etc.) and construct models to represent each. NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

4 th QUARTER 7 Add and subtract within 000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds. Measurement b. volume (capacity) liters, cups, pints or quarts; c. weight grams, ounces or pounds; Geometry Reason with shapes and their attributes. Partition a rectangle into rows and columns of samesize squares and count to find the total number of them. Number, Number Sense & Operations 5 Represent fractions (halves, thirds, fourths, sixths and eighths), using words, numerals, and physical models. For example: a. Recognize that a fractional part can mean different amounts depending on the original quantity. b. Recognize that a fractional part of a rectangle does not have to be shaded with contiguous parts. c. Identify and illustrate parts of a whole and parts of sets of objects. d. Compare and order physical models of halves, thirds and fourths in relation to 0 and. 4 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra

4 th QUARTER Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. 5 NNO: Number Sense & Operations MEAS: Measurement GEO: Geometry DA&P: Data Analysis & Probability PAA: Algebra