factor

multiple

prime

composite

common fractions

common denominator

mental math

=

<

>

improper fraction

mixed numbers

decimals

pictorial representation

sum

difference

numerator

denominator

sequence

multi-step

computational fluency

place value

estimation

reasonableness

equivalent

unknown quantity

inverse operation

unwrapping

tiles

balance scales

number sentence

physical model

number line

metric system

elapsed time

weight/mass

angles

transformations

translation as slide

reflection as flip

rotation as turn

rotational symmetry

coordinate grid

quadrant

double bar graph

line graph

spreadsheets

probabilities