This is a great list!! Could be good for most ages! SmallWorld: 100 Not-Boring Writing Prompts for Middle- and High Schoolers
Persuasive Writing Prompts for Middle School & High School
Journal Prompts for high school/middle school. FREE Printable! There's a second page too...
Growth Mindset Writing Prompts--fantastic blog post by The Daring English Teacher
Here is a list of 20 persuasive/opinion writing prompts that I let my students choose from. They are probably most appropriate for intermediate and middle school students.
More than fifty writing prompts for kids in elementary school and middle school. Journal ideas for students in second through eighth grade.
25 Conversation Starters to Help You Connect with Your Middle Schooler with free printable version.
Musings from the Middle School: Teaching Writing: the 4-1-1 (video post!)
MIDDLE SCHOOL WRITING PROMPT: Read the fascinating story behind Dr. Seuss and the Grinch. Then write your own "complaint" and its solution.
Growth Mindset Writing Prompts. High School. Middle School. Teaching Growth Mindset. Back to School. End of the Year.