1. Estimation The process of determining the value of a pop-
ulation parameter from a sample statistic.
2. reasonableness An answer that is based on good number sense.
3. Sum of a size or splendor suggesting great expense;
lavish
4. number sense the ability to understand numbers and their re-
lationships
5. Actual sum distance:
6. Manipulatives An object which is designed so that a learner
can perceive some mathematical concept by
manipulating it. The use of manipulative pro-
vides a way for children to learn concepts in
a developmentally appropriate, hands-on and
an experiencing way. Mathematical manipula-
tive are used in the first step of teaching math-
ematical concepts, that of concrete representa-
tion.
7. Rulers help you measure the size of an object on the
slide, as well as the amount of space between
objects
8. Measuring Containers teach students about fractions and the rela-
tionship between the standard units and metric
units.
9. Scales are a good tool to use to teach the concept of
equality in equations
10. Money money helps students understand the value as-
sociated with each denomination
11. Algebraic thinking learning about patterns, attributes of objects
and how to describe objects in detail
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12. linear programming The process of finding the maximum or mini-
mum values of a function for a region defined
by inequalities.
13. Commutative Property The property that says that two or more num-
bers can be added or multiplied in any order
without changing the result.
14. Associative Property Changing the grouping of numbers will NOT
change the value. For example: (7 + 4) + 8 = 7
+ (4 + 8) also works with multiplication
15. Identity An equation that is true for all values of the
variable.
16. Distributive Property a(b + c) = ab + ac
a property indicating a special way in which
multiplication is applied to addition of two or
more numbers in which each term inside a set
of parentheses can be multiplied by a factor
outside the parentheses, such as a(b + c) = ab
+ ac
17. bar graph A graph that uses horizontal or vertical bars to
display data
18. pictograph A picture or drawing representing words or
ideas
19. line graph An axis-type graph in which data points are
joined by a line.
20. quadrilateral A four-sided polygon.
21. rectangle A parallelogram with four right angles
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