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Many times in
Math, you are asked to "Explain your answer". That's when it is
important to use the "right words"! The "right words" are math
vocabulary words, so let's learn some!
First let's separate them into different
areas, but don't worry, we won't use all of them right now!
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Vocabulary Words for Grade Five Math |
| ALGEBRA |
expression,
constant , doubling, variable |
| GEOMETRY |
types of triangles according to angles:
acute, obtuse, and
right, congruent, corresponding angles
and sides, irregular and regular polygons, line of symmetry,
similar triangles |
| GRAPHING |
first quadrant,
ordered pairs, |
| NUMBER SENSE |
composite and prime,
greatest common factor (gcf), least common multiple (lcm), order
of operations, place value to millions, ratio, proper and improper
fractions, lowest terms, mixed numbers, |
| STATISTICS AND PROBABILITY |
certainty and
uncertainty, conclusion, decrease and increase, mean, outcome
,sample space, probability, outcome, prediction |
Let's discuss when you would use
which words! Let's look at some examples:
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Here's a sample problem: |
and the math words you MIGHT use! |
#1: Name the following
triangle, according to its angles:
 |
Since this is according to
angles, you are using acute, obtuse,
or right as possible names. |
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#2: You toss a die 100 times.
What is the probability you will toss a "6"?
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Use the Statistics and
Probability words: sample space,
outcome, prediction,
and of course
probability! |
| #3: Add 8 ¼
+ 7 ⅜ |
Use
greatest common factor, mixed number,
least common multiple, lowest terms, greatest common factor |
| #4: Play a game of Battleship |
Use
ordered pair, first quadrant |
| #5: John is 3 years older than his
brother Joe. Express John's age in terms of Joe's age. |
Use
expression, variable, and
constant. |
The full list of Fifth
Grade Math Vocabulary can be found by clicking
here.
Remember
when you are asked to
"Explain your answer"
use the "right words" - math vocabulary
words!
Ready
for Practice?
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