пятница, 28 октября 2011 г.
среда, 19 октября 2011 г.
вторник, 18 октября 2011 г.
суббота, 15 октября 2011 г.
Pre-Algebra Vocabulary Words
Term the number or an expressions that are added in a sum
Base the number or expression that is used as a factor in a repeated multiplication
Sum to determined the variable in an equation
Variable a letter that represents one or more numbers
Coefficient the numerical part of a variable term
Factor when two numbers are multiplied.
Expression a mathematical sentence
Quotient an answer to a division problem
Difference an answer to a subtraction problem
Power made up of an exponent or a base
Exponent a number or a variable that represents the number of times a base is used as a factor in a repeated multiplication
Equation a statement that two expressions are equal
Product an answer to a multiplication problem
Constant a term that is a number
Integer consisted of negative and positive whole number, including 0
Absolute Value the distance between the number and 0 on a number line
Opposites two numbers that have the same absolute value but have different signs
Coordinate Plane formed by a horizontal number line called the x-axis and a vertical number line called the y-axis
Origin the point (0,0) where the x-axis and the y-axis intersect in a coordinate plane
Ordered Pair a pair of numbers that can be used to locate a point in a coordinate plane. The first number is the x-coordinate, and the second number is the y-coordinate
X-axis, Y-axis the horizontal number line in a coordinate plane and the vertical number line in a coordinate plane
Quadrants four regions into which a coordinate plane is divided by the x-axis and the y-axis
Scatter Plot the graph of a collection of ordered pairs (x,y)
Base the number or expression that is used as a factor in a repeated multiplication
Sum to determined the variable in an equation
Variable a letter that represents one or more numbers
Coefficient the numerical part of a variable term
Factor when two numbers are multiplied.
Expression a mathematical sentence
Quotient an answer to a division problem
Difference an answer to a subtraction problem
Power made up of an exponent or a base
Exponent a number or a variable that represents the number of times a base is used as a factor in a repeated multiplication
Equation a statement that two expressions are equal
Product an answer to a multiplication problem
Constant a term that is a number
Integer consisted of negative and positive whole number, including 0
Absolute Value the distance between the number and 0 on a number line
Opposites two numbers that have the same absolute value but have different signs
Coordinate Plane formed by a horizontal number line called the x-axis and a vertical number line called the y-axis
Origin the point (0,0) where the x-axis and the y-axis intersect in a coordinate plane
Ordered Pair a pair of numbers that can be used to locate a point in a coordinate plane. The first number is the x-coordinate, and the second number is the y-coordinate
X-axis, Y-axis the horizontal number line in a coordinate plane and the vertical number line in a coordinate plane
Quadrants four regions into which a coordinate plane is divided by the x-axis and the y-axis
Scatter Plot the graph of a collection of ordered pairs (x,y)
http://quizlet.com/83773/pre-algebra-vocabulary-words-flash-cards/
Math Terms
Terms (Термины) Definition( Определения)
Perimeter The distance around a figure.Circumference The distance around a circle.
Acute angle An angle that measures less than 90 degrees.
Angle A figure formed by 2 rays that have the same endpoint.
Capacity A measure of how much liquid a container can hold.
Array An arrangement of objects or pictures in equal columns and rows.
Concentric circles Circles that have the same center but different diameters.
Congruent Same size, same shape.
Consecutive Following in order without interruption.
Denominator The number below the bar in a fraction. The denominator names the total number of equal parts.
Diameter The distance across the circle going through the middle.
Difference Answer to a subtraction problem.
Dividend The number being divided in division.
Divisor The number that divides the dividend in division.
Equivalent fractions Different fractions that name the same number.
Expanded form A number written to show the value of each digit.
Factor A number times another number.
Fraction A number that names a part of a whole, a part of a collection, or a part of a region.
Hexagon A six sided figure.
Horizontal Side to side.
Hundredth On of the 100 equal parts of a whole.
Intersecting lines Lines that meet or cross at a common point.
Interval The space or distance between two points on a scale or number line.
Line A straight path that extends infinitely in opposite directions.
Line of symmetry A line that divides a figure into two equal parts that match when folded on the line.
Line segment Part of a line defined by two endpoints along the line.
Mass The amount of matter in an object.
Mixed number A number containing a whole number part and a fraction part.
Numerator The top number of the fraction. The numerator names the number of equal parts.
Obtuse angle An angle that measures more than 90 degrees and less that 180 degrees.
Octagon An eight sided figure.
Parallel Lines that stay the same distance apart and never meet.
Parallelogram A quadrilateral that has two pairs of parallel lines.
Pentagon A five sided figure.
Period Each group of three digits in a number separated by a comma.
Perpendicular Lines that intersect at 90 degrees.
Polygon A simple closed two-dimensional figure made up of three or more line segments.
Product Answer to a multiplication problem.
Proper fraction A fraction that names a number between 0 and 1. The numerator is less than the denominator.
Quadrilateral A polygon with four sides and four vertices.
Quotient Answer to a division problem.
Radius The distance from the center to the edge of a circle.
Ray Are parts of a line that extend in one direction from one endpoint to infinity.
Reflection "Flipping" a figure
Rhombus A parallelogram with all four sides the same length.
Right angle An angle that measures 90 degrees.
Rotation "Spinning" a figure.
Standard form The simplest way to show a number using digits.
Sum Answer to an additional problem.
Tenth One of the 10 equal parts of a whole or collection.
Transformation Way of changing the position of a figure including rotation, reflection and translation.
Translation "Sliding" a figure
Trapezoid A quadrillateral with exactly on pair of parallel sides.
Vertex The corner of an angle.
Vertices More than one vertex.
Vertical Up and down.
Volume The number of cubic units that fit inside a three-dimensional figure.
Weight A measure of how much gravity pulls on an object.
Area The number of squares to cover the surfact of a figure.
Equivalent Equal.
http://quizlet.com/610663/4th-grade-math-terms-flash-cards/
пятница, 14 октября 2011 г.
Basic Math Vocabulary
+ - plus
Example:
2 + 2
Two plus two
- - minus
Example:
6 - 4
Six minus four
x OR * - times
Example:
5 x 3 OR 5 * 3
Five times three
= - equals
Example:
2 + 2 = 4
Two plus two equals four.
< - is less than Example: 7 < 10 Seven is less than ten. > - is greater than
Example:
12 > 8
Twelve is greater than eight.
≤ - is less than or equal to
Example:
4 + 1 ≤ 6
Four plus one is less than or equal to six.
≥ - is more than or equal to
Example:
5 + 7 ≥ 10
Five plus seven is equal to or greater than ten.
≠ - is not equal to
Example:
12 ≠ 15
Twelve is not equal to fifteen.
/ OR ÷ - divided by
Example:
4 / 2 OR 4 ÷ 2
four divided by two
1/2 - one half
Example:
1 1/2
One and one half
1/3 - one third
Example:
3 1/3
Three and one third
1/4 - one quarter
Example:
2 1/4
Two and one quarter
5/9, 2/3, 5/6 - five ninths, two thirds, five sixths
Example:
4 2/3
Four and two thirds
% - percent
Example:
98%
Ninety eight percent
http://esl.about.com/od/beginningvocabulary/a/math_vocabulary.htm
Example:
2 + 2
Two plus two
- - minus
Example:
6 - 4
Six minus four
x OR * - times
Example:
5 x 3 OR 5 * 3
Five times three
= - equals
Example:
2 + 2 = 4
Two plus two equals four.
< - is less than Example: 7 < 10 Seven is less than ten. > - is greater than
Example:
12 > 8
Twelve is greater than eight.
≤ - is less than or equal to
Example:
4 + 1 ≤ 6
Four plus one is less than or equal to six.
≥ - is more than or equal to
Example:
5 + 7 ≥ 10
Five plus seven is equal to or greater than ten.
≠ - is not equal to
Example:
12 ≠ 15
Twelve is not equal to fifteen.
/ OR ÷ - divided by
Example:
4 / 2 OR 4 ÷ 2
four divided by two
1/2 - one half
Example:
1 1/2
One and one half
1/3 - one third
Example:
3 1/3
Three and one third
1/4 - one quarter
Example:
2 1/4
Two and one quarter
5/9, 2/3, 5/6 - five ninths, two thirds, five sixths
Example:
4 2/3
Four and two thirds
% - percent
Example:
98%
Ninety eight percent
http://esl.about.com/od/beginningvocabulary/a/math_vocabulary.htm
вторник, 11 октября 2011 г.
понедельник, 10 октября 2011 г.
суббота, 8 октября 2011 г.
вторник, 4 октября 2011 г.
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