tlh teacher’s little helper
Approach · visual

Visual: energy chain and data pictures

Use the tsunami energy-chain diagram and data visuals to carry the cause-and-effect and the case studies.

Draw the energy chain

Students build the tsunami sequence as a labelled flow diagram: undersea earthquake → seafloor lifts → energy spreads through water → wave surges up at the coast. Drawing the chain (mirroring the deck's animation) makes clear the cause is the quake, not the wind.

Read the data, not just the story

For each case-study card, students turn one figure into a quick visual — a bar showing Cyclone Yasi's 285 km/h winds against a normal windy day, or the tsunami's 30 m wave against a two-storey house. Visualising the scale of the number drives home how serious the event was.