Indefinite Articles ESL Lesson – A and An Grammar Practice

This indefinite articles ESL lesson teaches the core rules for using a and an in English. With clear grammar explanations, practice exercises, and opportunities for guided production, this printable lesson helps students understand when and how to use indefinite articles accurately.

It’s ideal for introducing or reviewing the use of a/an before countable nouns. Suitable for both online and in-person lessons.

This lesson comes with:

Fillable Fields – Students can complete the exercises digitally or the PDF can be printed.

Teacher’s Copy – Includes detailed teacher’s notes and an answer key.

Student Version – Perfect for sharing via email for online lessons.

This is most suited to A0/A1- level.

 45 minutes – 1 hour (depending on level).

What’s in the Lesson?

Students explore the rules for a and an, then complete a range of controlled grammar activities to reinforce understanding. The lesson includes:

• A concise grammar guide on indefinite articles

• A and an worksheet exercises

• A pronunciation focus (consonant/vowel sounds)

• Sentence gap-fills and error correction

• Short speaking prompts for production

You Might Also Like:

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• Articles Grammar Exercise – Controlled article practice with gap-fills and questions

• Articles Rules – A, An & The Grammar Chart – A printable reference chart for article usage

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