There is now no need to re-invent the wheel. There are overwhelming numbers of grammar exercises already out there, freely available on the Internet.
The ECOSTAR team has carefully reviewed a large number of websites to find and select resources that provide clear explanations and well-constructed exercises with feedback, that facilitate independent study on CEFR-related grammar topics.
This curated collection contains over a hundred interactive grammar resources, organized according to CEFR levels. We hope that in the future teachers will contribute grammar-related resources to be shared by all.
