š Montessori Cultural Material ā Fish Puzzle Observation & Assessment Checklist Form Discovering aquatic life and anatomy through hands-on exploration. The Montessori Observation and Assessment Checklist for the Fish Puzzle Material is a carefully designed tool to help educators observe, document, and assess a childās understanding of fish anatomy, body structure, and scientific vocabulary through concrete, engaging learning. This checklist supports children as they explore the parts of a fish,