Lesson Plan

• Describe the visual symptoms of nitrate deficiency in plants.
• Describe the visual symptoms of magnesium deficiency in plants.
• Compare and contrast the symptom patterns of nitrate and magnesium deficiencies.
• Explain how nutrient mobility influences the distribution of symptoms.
• Identify diagnostic clues that differentiate the two deficiencies.

• Projector and screen
• PowerPoint slides with diagrams
• Printed handouts of symptom tables
• Fresh plant specimens (e.g., bean seedlings)
• Magnifying glasses
• Worksheet for comparative activity
• Whiteboard and markers

Have you ever wondered why some leaves turn yellow while others stay green? Building on your knowledge that nutrients are essential for plant growth, today we will explore two common mineral deficiencies. By the end of the lesson you will be able to identify and explain the symptoms of nitrate and magnesium deficiencies.

1. Do‑now (5'): Label a diagram of a healthy leaf versus a yellowed leaf (quick check).
2. Mini‑lecture (10'): Role of nitrate and its deficiency symptoms, using slides.
3. Mini‑lecture (10'): Role of magnesium and its deficiency symptoms, with diagram.
4. Comparative activity (10'): In pairs, complete a Venn diagram comparing the two deficiencies.
5. Hands‑on observation (10'): Examine real seedlings, record observed symptoms on worksheet.
6. Formative check (5'): Kahoot quiz / exit ticket with two diagnostic questions.

We reviewed the key symptoms of nitrate and magnesium deficiencies and how nutrient mobility shapes their appearance. For the exit ticket, write one symptom that clearly distinguishes nitrate deficiency from magnesium deficiency. For homework, research another mineral deficiency and prepare a short note on its symptoms.