There are thousands of English language teaching and learning sites online. Cookin’ English focuses on lexis, which many other sites do not. Other sites tend to focus on grammar or single-word vocabulary.
Lexis, meanwhile, is about how words work together in combination to create meaning. The lexical tasks used on this site help students of English understand how the language works at a meaningful and practical level.
It is not good enough to ‘know’ grammar. Nor is it good enough to ‘know’ lots of words. It is the practical application of a wide range of words, in carefully applied combination with others, that makes someone an effective communicator in any language.
The tasks on this site will help language learners to become better communicators.