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3.NSO
Number Sense and Operations
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3.NSO-N
Number Sense
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3.NSO-N.1
Exhibit an understanding of the base 10 number system by reading, modeling, and writing whole numbers to at least 10,000; demonstrate an understanding of the values of the digits.
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3.NSO-N.2
Represent, compare, and order numbers to 10,000 using various forms, including expanded notation and written out in words.
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3.NSO-N.3
Round whole numbers through 10,000 to the nearest 10, 100, and 1,000.
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3.NSO-N.4
Recognize sets to which a number may belong (odd numbers, even numbers, and multiples of numbers through 10). Identify the numbers in those classes.
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3.NSO-F
Fractions
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3.NSO-F.5
Identify and represent fractions (between 0 and 1 with denominators through 10) as parts of unit wholes and parts of a collection.
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3.NSO-F.6
Recognize, name, and use equivalent fractions with denominators 2, 3, 4, and 8; place these fractions on the number line; compare and order them and relate the number line to a ruler.
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3.NSO-F.7
Know the meaning of 0.75, 0.50, and 0.25 as they relate to money; know that fractions and decimals are two different representations of the same concept.
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3.NSO-F.8
Know that any fraction can be written as a sum of unit fractions.
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3.NSO-F.9
Model and represent a mixed number (with denominator 2, 3, or 4) as a whole number and a fraction.
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3.NSO-C
Computation and Operations
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3.NSO-C.10
Demonstrate an understanding of and the ability to use conventional algorithms for the addition and subtraction of up to five-digit whole numbers.
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3.NSO-C.11
Add and subtract up to four-digit whole numbers accurately and efficiently.
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3.NSO-C.12
Use concrete objects and visual models to add and subtract common fractions (halves, thirds, fourths, sixths, and eighths) with like denominators.
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3.NSO-C.13
Solve problems involving addition and subtraction of money amounts in decimal notation.
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3.NSO-C.14
Know multiplication is the result of counting the total number of objects in a set of equal groups.
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3.NSO-C.15
Know division (รท) as another way of expressing multiplication, i.e., that division is the inverse of multiplication.
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3.NSO-C.16
Know multiplication facts through 10 x 10 and related division facts. Use these facts to solve related problems.
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3.NSO-C.17
Solve simple problems involving multiplication of multidigit whole numbers by one-digit numbers.
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3.NSO-C.18
Solve division problems in which a multidigit whole number is evenly divided by a one-digit number.
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3.NSO-C.19
Multiply up to two-digit whole numbers by a one-digit whole number accurately and efficiently.
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3.NSO-C.20
Use the commutative (order) and identity properties of addition and multiplication on whole numbers in computations and problem situations.
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3.NSO-C.21
Know and apply the special properties of 0 and 1 in multiplication.
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3.NSO-C.22
Use multiplication and division fact families to understand the inverse relationship of these two operations and to compare and check results.
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3.NSO-E
Estimation
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3.NSO-E.23
Estimate the sum and difference of two numbers with three digits (sums up to 1,000) and judge reasonableness of estimates.
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3.NSO-E.24
Understand and use the strategies of rounding and regrouping to estimate quantities, measures, and the results of whole-number computations (addition, subtraction, and multiplication) up to two-digit whole numbers and amounts of money to $100 and to judge the reasonableness of answers.
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3.PRA
Patterns, Relations, and Algebra
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3.PRA.1
Create, describe, and extend symbolic (geometric) patterns and addition and subtraction patterns.
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3.PRA.2
Select appropriate operational and relational symbols to make an expression true.
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3.PRA.3
Determine values of variables in simple equations involving addition, subtraction, or multiplication.
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3.PRA.4
Know and express the relationships among linear units of measure, i.e., unit conversions.
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3.PRA.5
Extend and recognize a linear pattern by its rules.
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3.G
Geometry
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3.G.1
Compare and analyze attributes and other features (e.g., number and shape of sides, faces, corners, right angles) of two-dimensional geometric shapes, especially the attributes of triangles (isosceles, equilateral, right) and quadrilaterals (rectangle, square).
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3.G.2
Describe, model, draw, compare, and classify three-dimensional and two-dimensional shapes, especially circles and polygons (e.g., triangles and quadrilaterals).
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3.G.3
Identify angles as right, acute (less than a right angle), or obtuse (greater than a right angle).
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3.G.4
Identify and draw lines that are parallel, perpendicular, and intersecting.
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3.G.5
Identify and draw lines of symmetry in two-dimensional shapes.
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3.G.6
Apply techniques such as reflections (flips), rotations (turns), and translations (slides) for determining if two shapes are congruent.
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3.G.7
Using ordered pairs of whole numbers and/or letters, locate and identify points on a grid.
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3.M
Measurement
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3.M.1
Demonstrate an understanding of such attributes as length, area, and weight; select the appropriate type of unit for measuring each attribute using both the U.S. customary and metric systems.
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3.M.2
Carry out simple unit conversions within a system of measurement such as hours to minutes and cents to dollars.
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3.M.3
Identify time to the nearest 5 minutes on analog and digital clocks using a.m. and p.m. Compute elapsed time using a clock (e.g., hours and minutes since ...) and using a calendar (e.g., days since ...).
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3.M.4
Estimate and find area and perimeter of a rectangle and triangle using diagrams, models, and grids or by measuring.
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3.DASP
Data Analysis, Statistics, and Probability
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3.DASP.1
Collect and organize data using observations, measurements, surveys, or experiments.
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3.DASP.2
Construct, identify the main idea, and make predictions from various representations of data sets in the forms of tables, bar graphs (horizontal and vertical forms), pictographs, and tallies.
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3.DASP.3
Record all possible outcomes for a simple event using concrete objects.
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3.DASP.4.
Classify outcomes as certain, likely, unlikely, or impossible.
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3.DASP.5
List and count the number of possible combinations of objects from 2 sets.
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