Based on your search query, I would recommend Quizizz as a suitable EdTech tool for your needs.

Quizizz is an interactive learning platform that allows you to create gamified quizzes and lessons. It's particularly useful for 9th-grade teachers as it supports both teacher-paced and student-paced learning, which can be beneficial for managing a diverse classroom.

One of the standout features of Quizizz is its AI-enabled quiz generator. This feature can automatically create quizzes from existing documents or text, saving you valuable time in content creation.

Additionally, Quizizz provides access to millions of pre-made quizzes. This vast resource can be a great help when you're looking for material that aligns with the 9th-grade curriculum.

Lastly, Quizizz generates detailed reports on student performance. This feature can be instrumental in tracking your students' progress and identifying areas where they might need extra help.

In summary, Quizizz offers a comprehensive set of features that can support your teaching needs for the 9th grade.