Week 18
Modals of deduction: must be, might have been.

What will we achieve today?

Session Objective: Uses modal verbs of deduction in the present (must be, might be, can't be) and past (must have been, might have been, can't have been) to analyze mysteries.

Community Connection: We will connect this language structure to describe our own life experiences, family stories, and community realities in Popayán and the Cauca region.

Key Concepts

• Present deduction: Must be (90% sure true), Might/May/Could be (50% sure), Can't be (90% sure not true).
• Past deduction: Must have been / Might have been / Can't have been + past participle (e.g., 'He can't have stolen it; he was with me').
• Evidence-based reasoning: Drawing conclusions based on clues.

Practical Challenge: Deduction Lab

Read a short mystery story (e.g., the missing painting) and write 4 deduction statements using present and past modals based on the clues.

Reflection & Wrap-up

Self-assessment Question: Exit ticket: Write a deduction for: 'The ground is wet.' (must have rained) and 'The door is locked from the inside.'

Remember to register your findings and language achievements in your academic class portfolio.