During which PECS phase does the student start using a sentence strip?

In the Picture Exchange Communication System (PECS), the student begins using a sentence strip during the phase where they learn to construct more complex forms of communication. This involves combining symbols onto a sentence strip, which supports the development of more sophisticated language structures.

In this phase, the student not only learns to communicate wants and needs but also starts to understand the syntax and structure of sentences. By using a sentence strip, the student can form complete thoughts, which reinforces their ability to convey messages clearly and effectively. This builds a foundation for more advanced communication skills, as it allows for the expression of ideas beyond simple requests.