The systematic approach to teaching beginner writing focuses on directly imparting explicit sentence construction strategies, along with planning, revising, and editing skills. Students are asked to learn these explicit strategies and skills and practice them before applying them in more holistic writing assignments. Grammar and parts of sentences tend to have a central role in systematic writing instruction.
The process approach to teaching beginner writing aims to get students writing “real things” as much as possible and as soon as possible. The goal is to create the right environmental conditions to encourage a love of writing and a motivation to write well. With children invested in the writing process -- through assignments children find meaningful -- students are then given feedback on how they can improve.
Programs that balance systematic and process approaches equally likely have an emphasis on giving young students ample opportunities to write, while providing supplementary class-wide instruction in grammar, parts of sentences, and various writing strategies.