In a deep end strategy, new language input is provided within a context that includes other language structures.
You could present the present simple affirmative with a text about a typical day in the life of sports star. The text would include perhaps ten examples of the present simple affirmative, plus some other grammatical structures. The students would read the text and underline the verbs in the present simple. You could then go on to the standard practice and production stages of a PPP presentation.
The idea behind this is that students can recognize much more than they can produce.
This is the opposite approach to the Structural-Situational Approach.