Ideas in this flowchart

• Biftech: Understand the Reason
• Example Question
• Why do airplanes fly?
• Before Biftech
• Student remembers answer
• Airplanes fly because of lift
• Student cannot explain lift
• Missed Concepts
• Engine pushes airplane forward
• Air flows over and under wings
• Wing shape changes airflow
• Pressure lower above wing
• Pressure difference creates lift
• Lift > Airplane's weight for takeoff