LessonPlanz.com is provided by A to Z Teacher Stuff, whose primary goal is to enhance the learning of students everywhere through helping teachers find the resources they need. Educators can search or browse the science category, which contains hundreds of lesson plans organized by grade level from grade school through twelfth grade. Each listing contains the title, age recommendation, a rating based on user feedback, and the direct link to the lesson plan. Although advertisements abound, the offerings and the very helpful rating system make the site a must visit for educators seeking new material.