Get your students thinking like real-world problem solvers with this engaging 6th-grade project: *How Big? How Far? How Much?* Learners tackle three open-ended Fermi-style estimation tasks that connect measurement, geometry, and reasoning — no memorization required! Students estimate distances, volumes, and surface areas using classroom features and real objects. They plan assumptions, collect data with floor or ceiling tiles, sketch models, record units, and explain why exactness isn’t alwa