We present 11 evidence-based practices for teaching writing to students. These include recommendations for teaching writing to younger students (aged 5-11) and older students (aged 6-18). The recommendations are based on findings from close to 1000 investigations. The proposed recommendations are: (1) students need to write, but writing is not enough; (2) students need to be supported as they write; (3) foundational writing skills (handwriting, spelling, grammar and sentence construction) need to be taught; (4) students become better writers when strategies for planning, revising and editing are taught; (5) teaching creativity, critical thinking and imagery can enhances writing; (6) teach students how to write summaries; (7) enhance students' knowledge about writing; (8) use twenty-first century writing tools in the classroom; (9) have students write across the curriculum; (10) connect reading and writing instruction and (11) creative a motivating writing environment.