# data[].attributes.headline
How do we know when to use an expression?

# data[].attributes.subject
How do we know when to use an expression?

# data[].attributes.headline
What are some items in math that are neither expressions or equations?

# data[].attributes.subject
What are some items in math that are neither expressions or equations?

# data[].attributes.headline
When would you use something that isn't an expression or an equation?

# data[].attributes.subject
When would you use something that isn't an expression or an equation?

# data[].attributes.body
Equations have equals signs

# data[].attributes.body
Expressions don't have equals signs

# data[].attributes.body
Expressions contain variables (letters), numbers, and operators

# data[].attributes.body
Equations contain variables (letters), numbers, operators, and an equals sign

# data[].attributes.body
Visuals like diagrams or graphs are not expressions or equations

# data[].attributes.body
When you need to create something in math rather than solve and get an "answer"