This is a 18 page document that explains the AO2 objective very clearly, aimed for students. It guides students to understand the objective, and allows them to see the path clearly on how to achieve it. It gives advice on experimenting, learning from their experiments, refining their work, boosting their vocabulary and making connections throughout. There is also a checklist at the end.

You can see the AO1 guide here: /teaching-resource/igcse-art-ao1-guide-13546592