Ideas in this flowchart

• Biftech: Understand the Reason
• Example Question
• Why do seasons occur on Earth?
• Before Biftech
• Student's Initial Understanding
• Seasons happen because Earth orbits the Sun
• Teacher's Question
• Why doesn't every place have the same season?
• Student's Difficulty
• Missed Reasons
• Earth's axis is tilted by 23.5°
• Tilt direction remains constant
• Northern Hemisphere tilt variations
• Tilted toward Sun
• More direct sunlight, longer days
• Produces summer
• Tilted away from Sun
• Less direct sunlight, shorter days
• Produces winter