alert

answer

attention

background

black

blackboard

board

chalk

chalkboard

character

class

collection

concept

danger

draw

drawing

drawn

education

exclamation

group

hand

handwritten

icon

idea

illustration

important

information

interjection

learn

learning

letter

lettering

many

mark

marks

outline

pattern

problems

school

set

sign

sketch

solve

study

symbol

text

warning

white

write

written