Standing on One Foot

by: Page Keeley and Joyce Tugel

The purpose of this assessment probe is to elicit students' ideas about weight and pressure. The probe is designed to determine whether students think their weight changes when the force exerted per unit area (pressure) on a scale changes.

NSTA Press produces classroom-ready activities, hands-on approaches to inquiry, relevant professional development, the latest scientific education news and research, assessment and standards-based instruction.

Learn More