# High Attendance > Grade-lite student growth and placement system for private middle and high schools. Measures effort, reveals mastery, and supports evidence-based placement decisions. High Attendance overlays existing SIS/LMS tools to capture three signals — Effort, Mastery, and Reliability — and turns them into a Placement Readiness Index that schools, teachers, students, and guardians can all act on. ## Pages - [Home](/): Overview of the grade-lite assessment platform. - [Features](/features): 60+ features across student, teacher, admin, and guardian workflows. - [Benefits](/benefits): Role-specific benefits for students, teachers, administrators, and guardians. - [Compare](/compare): How High Attendance differs from traditional SIS and LMS stacks. - [Founder](/founder): Brian Holtz, founder and architect of Alpha School. ## Optional - [Sign in](/auth): Authentication for school staff, students, and guardians.