As...as comparisons

## Level and focus

**Level:** A2  
**Category:** Comparison

Use as...as and not as...as to compare equality and difference.

By the end of this lesson, learners should be able to: **Form equal and negative comparisons with as + adjective/adverb + as.**

## Core idea

This lesson adds a recommended grammar point that improves the coverage of the curriculum without changing the overall CEFR progression. Learners should first recognise the pattern, then practise controlled examples, and only later combine it with adjacent grammar.

## Form

- `as + adjective + as: as tall as`

• not as + adjective + as: not as expensive as

• as + adverb + as: as quickly as

  Meaning and use

  Use this grammar when the speaker needs the meaning described in the lesson goal. The examples should stay close to the level and should not rely on advanced vocabulary or several new grammar points at once.

  Examples

  • This bag is as heavy as that one.

• My room is not as big as yours.

• She runs as fast as her brother.

• The second exercise is not as difficult as the first.

  Common mistakes

  • Using than with as...as: not as tall than me; use as tall as me.

• Using comparative adjective inside as...as: not as taller as; use as tall as.

• Dropping the second as: not not as expensive my phone; use not as expensive as my phone.

  Teaching sequence

  1. Start with a clear contrast between two forms or meanings.
  2. Give short controlled examples with familiar vocabulary.
  3. Include one item that targets a common mistake.
  4. Add mixed review items that distinguish this point from a neighbouring lesson.
  5. End with simple sentence-level production or recognition.

  Boundary: what not to cover here

  Keep advanced comparative clauses and modifiers like far, considerably, nowhere near for later levels.

  Suggested practice

  For the current exercise system, use 25 multiple-choice exercises. Include clear distractors that test the target grammar, not obscure vocabulary. Later, this lesson can be expanded with gap-fill, error-correction or transformation tasks.

Quick check

Before you move on, can you explain the rule in one sentence and make one example of your own?