Creating custom tutorials is how The Grammar Project teaches. Each tutorial is a list of questions divided into lessons. Demonstrate that you can answer all of the questions and move on to the next lesson. When all the lessons are complete the tutorial is complete.
Tutorials can be created in a variety of ways. When you view a word, phrase or pattern, there is a “Learn” button on the page that will create a tutorial for that specific word, phrase or pattern. Or create a larger tutorial from one of the vocabulary lists or by flagging up to 200 words and phrases. You can also create a tutorial by ripping the words and phrases out of a piece of text.