Lesson Plan

• Describe the main stages of meiosis and their key cellular events.
• Interpret photomicrographs and diagrams to identify specific meiotic phases.
• Explain how genetic variation arises during meiosis (crossing‑over, independent assortment, random fertilisation).
• Compare meiosis I and meiosis II in terms of chromosome number and cell outcomes.

• Projector and digital slides of meiotic photomicrographs
• Printed worksheets for diagram labeling
• Microscopes or virtual microscope software
• Coloured markers and whiteboard
• Student response clickers or online quiz tool (optional)

Show a 30‑second video of a fertilized egg undergoing division to spark curiosity. Ask students what they already know about how genetic information is passed on. State that by the end of the lesson they will be able to read and explain photomicrographs of each meiotic stage and list the sources of genetic variation.

1. Do‑now (5'): Quick recall quiz on mitosis vs. meiosis on the board.
2. Mini‑lecture (10'): Overview of meiosis I & II, highlighting key events and visual cues.
3. Guided analysis (15'): Teacher projects photomicrographs; students annotate chromosome condensation, synaptonemal complex, chiasmata, spindle orientation.
4. Group activity (15'): Teams label a blank meiosis schematic worksheet; circulate to check understanding.
5. Formative check (5'): Clicker question asking which stage shows crossing‑over.
6. Recap & transition (5'): Summarise main points and preview upcoming genetics problems.

Review the sequence of meiotic stages and the visual markers that identify each. Students complete an exit ticket: name one visual feature that distinguishes Prophase I from Metaphase II and the associated source of variation. For homework, assign a worksheet requiring interpretation of three new photomicrographs.