| A | B |
|---|
| approximate | to obtain a number close to an exact amount |
| argument | a reason or reasons offered for or against something |
| conjecture | inference or judgement based on inconclusive or incomplete evidence |
| estimate | to find an approximate value or measurement of something |
| evidence | models, known facts, patterns, relationships, and counter examples |
| investigate | to research using careful observation and examination of the facts |
| reasonable | within likely bounds, sensible |
| compare | to look for similarities and/or differences |
| justify | to prove or show to be true using logic and/or evidence |
| benchmark (landmark) | a reference number that can be used to estimate the size of other numbers |
| skip counting | counting on using the multiples of a given number |
| square root | the quantity which when multiplied by itself will produce a given quantity |
| composite number | a number that has more than two factors |
| factor | one of two or more numbers that are multplied together to obtain a product |
| multiple | a number that is divisible by a given factor |
| prime number | a number having exactly 2 factors |
| square number | a number that is a product of a single factor multiplied by itself |
| even number | a whole number divisible by two |
| odd number | a whole number that is not divisible by two |
| dimensions | measurement in length, width, and often depth |
| fraction | a way of representing part of a whole or group by telling the number of equal parts in the whole and the number of parts you are decribing |
| percent | out of 100 |
| decimal | a special form of fraction based on the base ten place-value system |
| portion | an amount less than 1 whole |
| denominator | the bottom number on a fraction that tells how many equal pieces the whole is broken into |
| numerator | the top number on a fraction that tells you how many parts you have |
| lowest terms | a fraction reduced |
| rotation | one complete turn |
| equivalent fractions | two or more fractions naming the same amount |
| mixed number | a number that is written with both a whole number and a fraction |
| standard form | writing a number value using only digits |
| word form | writing a number value using only words |
| right triangle | a triangle with one right angle |
| obtuse triangle | a triangle with one angle larger than 90 degrees |
| scalene triangle | a triangle with no equal sides |
| isosceles triangle | a triangle with two equal sides |
| equilateral triangle | a triangle with three equal sides |
| square | a four-sided polygon with four equal sides and four right angles |
| rhombus | a four-sided polygon with equal sides |
| parallelogram | a four-sided polygon in which opposite sides are parallel |
| rectangle | a four-sided polygon with four right angles and opposite sides that are equal |
| polygon | a closed shape with straight sides that do not overlap |
| regular polygon | a polygon that has all of its sides and angles equal |
| similar polygon | polygons that are exactly the same shape |
| quadrilateral | a four-sided polygon |
| pentagon | a five-sided polygon |
| hexagon | a six-sided polygon |
| coordinate graph | a pattern of regularly spaced horizontal and vertical lines with ordered pairs of numbers that can be used to locate points |
| x-axis | the horizontal number line on a coordinate graph |
| y-axis | the vertical number line on a coordinate graph |
| acute angle | an angle whose measure is less than 90 degrees |
| obtuse angle | an angle whose measure is greater than 90 degrees and less than 180 degrees |
| right angle | an angle whose measure is 90 degrees |
