This glossary is provided both for definitions and as an alternate way of navigating That’s Math!
If your child is studying a particular topic, you can look for it here. When you find it, click on the term and you’ll get a no-nonsense definition along with a list of places in That’s Math! where you can find specific examples of that concept in action.
If you’d like to see something done in a That’s Math! exercise, please suggest it in the form at the bottom.
A
[gs addition]
[gs angle]
[gs area]
[gs arrangement]
B
[gs between]
C
[gs circle]
[gs classifying]
[gs commutativity]
[gs comparison]
[gs concave]
[gs convex]
[gs counting]
[gs cup]
[gs cylinder]
D
[gs date]
[gs degrees]
[gs difference]
[gs dimension]
[gs dimensional]
[gs division]
E
[gs ellipse]
[gs endpoint]
[gs equal]
[gs equidistant]
[gs estimate]
F
[gs fraction]
G
[gs geometry]
[gs gram]
[gs greater than]
H
[gs height]
[gs hexagon]
[gs horizontal]
I
[gs increase]
J
No terms yet.
K
No terms yet.
L
[gs length]
[gs less than]
[gs line]
[gs linear]
M
[gs midpoint]
[gs money]
[gs most]
[gs multiplication]
N
[gs number]
O
[gs one-to-one correspondence]
[gs opposite]
P
[gs per]
[gs percent]
[gs perpendicular]
[gs pound]
[gs proportion]
Q
No terms yet.
R
[gs ratio]
[gs rectangle]
[gs relation]
[gs relative price]
[gs rotate]
S
[gs set]
[gs size]
[gs sphere]
[gs square]
[gs substitution]
[gs subtraction]
[gs symmetric]
T
[gs time]
[gs triangle]
U
[gs unique]
[gs unit]
V
[gs vertical]
[gs volume]
W
[gs weight]
[gs width]
Glossary Word Request
If you’d like to see a term or concept explored in the That’s Math! style, let us know here:








