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 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)
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