Georgia Performance Standards for Fourth Grade Terms fo… · Georgia Performance Standards for Fourth Grade Mathematics Terms for Georgia’s (CRCT) Criterion Reference Competency

Georgia Performance Standards for Fourth GradeMathematics Terms for Georgia’s

(CRCT) Criterion Reference Competency Test

Administered in April of Each Year

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CRCT TermsLearned in 3rd Grade

• Add and subtract decimals• Whole numbers/decimal computation• Identify angles - scalene, isosceles,

equilateral• Length, area, weight• Number sense

CRCT Terms Learned in 3rd Grade

• Add/subtract fractions with like denominators ⅛ + ⅜ =

• Data usage/interpretation• Characteristics of 2D and 3D

shapes• Order of operation

CRCT Terms Learned in 3rd Grade

• Fact Families –(See X and ÷ Power Points) (Should have memorized these in 3rd grade)

• Multiply 2 digits by 2 digits• Divide by a 2 digit number• Divide a 3 digit number by a single

digit number• Fractions- proper, improper, mixed

number

Proper, Improper, Mixed Fractions

• Proper – in which the numerator is less than the denominator 3/4, 5/8

• Improper – in which the numerator is greater than one or equal to the denominator 4/3, 6/6

• Mixed number – a whole number plus a fraction 2 ⅛

CRCT Terms Learned in 3rd Grade

• Estimate: an approximate rather than an exact answer to a math problem.

• Round to nearest 10, 100, 1000• Round decimal to nearest

whole number

CRCT Fourth Grade Math Concepts, Terms, and Skills

CRCT Fourth Grade TermsNumbers and Operations

• Classify numbers into odd/even numbers

• Understand factors

Factors – the numbers that are multiplied to give a product

1x2=2, 3x5= 15

The factors are 1, 2, 3, and 5.

CRCT Fourth Grade Terms(See May Vocabulary Power Point)

CRCT Fourth Grade Terms

• Picture Graphs/Venn Diagram(See May Power Point)

• In math, a Venn Diagram is used to show relationships between sets. In prewriting, it is used to organize thoughts.

• In language arts, a Venn Diagram is used to compare or contrast 2 subjects, 2 places, 2 things, or 2 people.

Venn DiagramUsed to Compare and Contrast

Factors of 6 and 10

5, 103, 61,2

Greatest Common Factor is 2.

1 and 2 are common factors

CRCT Fourth Grade Terms• Place Value – the value determined by the

position of a digit in a number. (e.g. ones, tens, hundreds, thousands, ten thousands, hundred thousand, one million, …… )

onestenshundredsthousandsTen

thousands

3, 2 1 1, 5 3 43, 2 1 1, 5 3 4

Hundredthousand

Onemillion

CRCT Fourth Grade Terms• Decimal point – a period put before a decimal

fraction. The periods in .5 and .30 are decimal points.

• Numerator – The number above the fraction bar in a fraction. (¾ the numerator is 3.)

• Denominator - The number below the fraction bar in a fraction. (3/4 the denominator is 4.)

• Common denominator - ¼ , ¾ the common denominator is 4.

CRCT Fourth Grade TermMeasurement

(See November Power Point)• Measure and compare -inch, foot, yard,

centimeter, meter, milliliter, liter, cup, pint, quart, gallon, etc. (See November Power Point)

• Compute volume using formulas with units of cubic centimeters ( cm ), cubic meter (m cubic inch ( in ), and cubic yard (yd ).

• Protractor – an instrument used to draw and measure angles

3 33 3

protractor

CRCT Fourth Grade TermsGeometry

( See December/January Power Points)• Understand a parallelogram

(e.g. cut it apart and rearrange it into rectangle with the same area)

• Understand faces, edges, and vertices

CRCT Fourth Grade TermsGeometry

• Geometry Shapes/Plane Figures –triangles, squares, rectangles, trapezoid, quadrilateral, pentagon, hexagon (See December Power Point)

• Irregular Polygons-according to number of edges –Vertices (See January PowerPoint)

• Sizes of angles- right angle, obtuse angle, acute angle

(See January Vocabulary Power Point)

CRCT Fourth Grade TermsGeometry

• Polygon - a closed figure made by joining line segments, where each line segment exactly intersects two others

• Regular polygon- a polygon whose sides are all the same length and has angles all the same

• Irregular polygons- have different side lengths and different angles (See Irregular Polygons on this CD)

Vertex/vertices

Vertex- the point at which the sides of an angle meet

vertex

ray• Ray – A part of a line that has

one end point and goes on and on in one direction.

Pentagon – a flat shape with five sides. The sum of the angles is 540°.

Hexagon – a shape with six straight sides. The sum of the angles is 720°.

1

2

3

4

5

6

Trapezoid –a 4 sided polygon with only one pair of opposite sides parallel. The sum of the angles is 360°.

Trapezoid

Quadrilateral – a figure of four sides and four angles. It is a four sided polygon.The sum of the angles is 360°.

90° 90°

90° 90°

90° x 4 sides = 360°

quadrilateralquadrilateral

CRCT Fourth Grade Terms• Congruent – figures that have the same size and

shape• Arrays- (See September Power Point)

• Graph- a drawing used to show numerical information.

• Grid – a network of horizontal and perpendicular lines used a a model or representation of something

• Ordered pairs- a pair of numbers often used to locate a point in a plane.

CRCT Fourth Grade TermsMath Symbols

- Difference - means to subtract (See September Power Point)

% Percent – a part of a fraction of a whole expressed in hundredths

CRCT Fourth Grade TermsAlgebra

• Represent/investigate the relationships between quantities algebraically

• Substitute numbers for the unknown• Use variables such as █ (rectangle)

or ▀ (square) for unknown quantities

CRCT Fourth Grade TermsData Analysis

• Analyze data presented in a graph• Collect, organize and display data

using such graphs as circle graph, line graph, bar graph, etc.

CRCT Fourth Grade TermsWord Problems

• Solve word problems using the appropriate math strategy

• Solve single and multi-step word problems

• Determine the operations needed to solve the word problems

• Determine the most efficient way to solve the problem, e.g. mental math, paper and pencil or calculator

CRCT Fourth Grade TermsProblem Solving Strategies• Brainstorm• Make a table• Work backward• Use or look for a pattern• Make a picture or diagram• Guess and check• Make an organized list• Use logical reasoning