Quarter 1 Critical Vocabulary:
To further understand these vocabulary words please click on the word 'Exploration'
Compare - Use >, <, or = to express relationship. (4 < 15)
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Estimate - An answer that is close to the exact answer found by various methods
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Rounding - replacing a number with an estimate of that number to a given place value
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Evaluate - find the value of an expression (give the answer, solve the problem)
Order of Operations - A rule for evaluating expressions: first perform the operations in parentheses, then compute exponents, next perform multiplication and division from left to right, and finally perform all addition and subtraction from left to right. (P, E, MD, AS)
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Commutative property - changing the order of the numbers does not change the solution. (4 + 5 = 5 + 4 or 3 x 2 = 2 x 3)
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Identity Property - When you multiply by 1 or add 0 to any number you retain the original number. (18 + 0 = 18 or 5 x 1 =5)
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Expression- a mathematical phrase that contains operation(s), number(s), and/or variable
Substitute - to replace a variable with a number
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Simplify - to write a fraction or expression in simplest form
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Quarter 2 Critical Vocabulary
Mean - taking the sum of the items in the set of data then dividing by the number of items in the set
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Median - the middle number or the mean of the two middle numbers in a numerically ordered set of data
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Mode - the number(s) that occur the most frequently in a set of data
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Range - the distance (difference) between the greatest and least values in a data set
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Composite Numbers - a number greater than one that has more than two whole number factors
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Divisible - can be divided by a number without leaving a remainder
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Factor - a number that is multiplied by a number to get a product.
Prime Number - a whole number greater than 1 that has exactly 2 factors, 1 and itself
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Equivalent - having the same value (equal)
Exploration
Median - the middle number or the mean of the two middle numbers in a numerically ordered set of data
Exploration
Mode - the number(s) that occur the most frequently in a set of data
Exploration
Range - the distance (difference) between the greatest and least values in a data set
Exploration
Composite Numbers - a number greater than one that has more than two whole number factors
Exploration
Divisible - can be divided by a number without leaving a remainder
Exploration
Factor - a number that is multiplied by a number to get a product.
Prime Number - a whole number greater than 1 that has exactly 2 factors, 1 and itself
Exploration
Equivalent - having the same value (equal)