3D models in lessons: practical ideas by subject

Why a 3D model and not a picture

A photo shows one side. A 3D model can be turned, zoomed and seen from below, and with augmented reality it appears on the desk at scale. Students ask questions a picture never triggers: what is at the back, how big is it really, how do the parts connect.

Two ways to get the model

• Phone scanning, for real objects you have: exhibits, rocks, plants, student work. The result keeps the true shape and colours.
• AI generation from a photo or text, for what you do not have: a dinosaur, a stylised molecule, a castle. Fast, but unseen parts are approximated.

Ideas by subject

Biology

Scan a flower, a mushroom or a shell from the lab collection. Students label parts on the model and compare it with the textbook diagram. For microscopic structures use a generated model and say clearly what is simplified.

Geography

Rocks and minerals from the school collection, a relief model built by students, a globe. In AR the relief model sits on the desk and students study it from different angles.

History

Objects from the school museum or local collections: tools, pottery, coins. Scanning makes them available without taking them out of the display case every time.

Physics and technology

Mechanical parts, a dismantled motor, a crane built from a kit. Students scan their own builds and present them; the teacher keeps the models for next year.

Showing the model in class

1. 1Put the lesson's models in a collection and project its QR code.
2. 2Students scan the code with their phones; no account or app needed.
3. 3Ask a question that can only be answered by rotating the model.
4. 4Students with a compatible phone place the model on the desk in AR; others work in pairs.

Not every student has a phone. Pairs or small groups sharing one device work well, and the model can also be shown on the projector.