YCIS

First Four

Yew Chung International School of Hong Kong

Science · Y8 · Pre-IGCSE · Today

01 Welcome

Welcome.Look at the still. One word on a whiteboard: what a leaf is actually for. Hold it to your chest.

Did you know

Almost every breath in this room was made by a plant splitting water with sunlight.
A leaf making the air we breathe

Watch for: What goes into the leaf — and what comes out.

HPL · VAA · Enquiring · Agile

What would you need to observe before you believed a leaf made the air we breathe?

Film · still on Welcome · clip on Welcome

School-safe animation of light in a leaf. Two minutes of watch-and-write. Skip if it does not match the equation.

You watched it

Teacher notes · slide 1

Keep the check-in silent. Do not collect scores. Preview the still and the film before the class sees them. Name the HPL VAA Enquiring once.

Critical thinking · ask, do not project

  1. 1.HPL · Enquiring: what would you need to observe before you believed a leaf made the air we breathe?
  2. 2.Is “plants breathe the opposite of us” useful, or a shortcut that causes a mistake?
  3. 3.Why might a plant in a dark cupboard still be alive tomorrow morning?
  4. 4.What would have to be true for the still to be evidence, not decoration?
  5. 5.Who benefits if we get this idea wrong — a farmer, a diver, a city planner?
  6. 6.What can the picture not tell us that today’s lesson still has to?