š Montessori Botany Material ā Leaf Puzzle Observation & Assessment Checklist Form Exploring plant structure and natureās details through hands-on discovery. The Montessori Observation and Assessment Checklist for the Leaf Puzzle Material is a thoughtfully designed tool to help educators observe, document, and assess a childās understanding of leaf anatomy, plant structure, and botanical vocabulary through concrete, meaningful work. This checklist supports children as they explore the parts of