## Correct Student Work

## Work Time

# Correct Student Work

Work with a partner and try the Self Check task again—this time combining your ideas.

Self Check Task

Imagine that you are the teacher. Decide whether the work shown is correct or incorrect. If you see an incorrect answer, do the following:

- Cross it out and replace it with a correct answer.
- Explain what is wrong using words or diagrams.

What was the most common type of error that Emma made?

What was the most common type of error that Chen made?

## Hint:

- What do you already know about the distributive property?
- What do you already know about how to simplify expressions?