Number and Size Prefixes

Mono-, di-, deci-, cent-, kilo-, mega-, mini-, linked to math and science words.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 10

Some prefixes count. Mono means one, so a monorail has one rail. Di means two.
You've met these in math! Deci means one tenth, cent means one hundred, and kilo means one thousand.
Some prefixes show size. Mega means very large, and mini means small. A megaphone makes a voice large.
Now you can guess new words. If you see megacity, you can tell it means a very large city.

Georgia's K-12 English Language Arts Standards:

5.L.V.2.a — Deconstruct words using knowledge of Greek and Latin roots, root words, and affixes to determine meaning. (I)
5.L.V.2.c — Construct words using knowledge of Greek and Latin roots, root words, and affixes. (C)