Headstart integrated series comprises theme-based books that can be used on their own or as a complete course. The series provides a complete foundation for learning in the foundation phase. Headstart integrated is an exciting new course that is easy to use. Headstart integrated series comprises theme-based books that can be used on their own or as a complete course. The series provides a complete foundation for learning in the foundation phase. Headstart integrated is an exciting new course that is easy to use.