Lesson Overview

Students are introduced to 3D Computer-Aided Design (CAD) using Shapr3D on iPad. They learn what CAD is, why it is used for precise 3D design, and how Shapr3D's intuitive touch-and-pencil interface makes 3D modelling accessible. Students will navigate the workspace, create basic sketches, use the Push/Pull tool to extrude 2D shapes into 3D forms, and explore the Body, Shell and Chamfer/Fillet tools. The lesson emphasises hands-on exploration and direct manipulation, building foundational digital fabrication skills aligned with the Singapore Design & Technology syllabus.

Learning Objectives

By the end of this lesson, students will be able to:

1
Explain what CAD is and describe why Shapr3D's direct modelling approach makes 3D design faster and more intuitive
2
Navigate the Shapr3D workspace: open a new design, orient the view using touch gestures, and understand the grid and axes
3
Create basic 2D sketches using the sketch tools (line, rectangle, circle, arc) with Apple Pencil or touch
4
Use Push/Pull to extrude 2D sketches into 3D solid bodies
5
Apply Shell to hollow a solid body and Chamfer/Fillet to soften edges
6
Export a finished model as STL for 3D printing

Singapore Curriculum Alignment

Aligned to MOE Design & Technology: visualisation, modelling and communicating design ideas. Supports the Applied Learning Programme (ALP): computational thinking, design iteration and digital fabrication awareness. Shapr3D on iPad aligns with Singapore's National Digital Literacy Programme and the Personalised Digital Learning Programme (PDLP).

Prior Knowledge Required

Basic iPad navigation (touch gestures, app launching)
Recognition of simple 2D and 3D geometric shapes
Basic understanding of measurement and dimensions
No prior CAD experience required — Shapr3D is designed for beginners

Materials & Resources

Item	Quantity
iPad with Shapr3D installed (free education license)	1 per student or pair
Apple Pencil (recommended for precise sketching)	1 per student
Teacher iPad with screen mirroring to projector/Apple TV	1
Shapr3D student account (set up before class)	1 per student
Printed quick-reference gesture guide	1 per student
Optional: 3D printer for printing student models	If available

Safety Notes

Maintain good posture when using iPad — avoid hunching over the screen for extended periods
Take regular short breaks to rest eyes and hands during screen-based work
Keep iPads on flat surfaces when not in use to prevent drops
If 3D printing, follow all printer safety protocols and supervise operation
Ensure iPads are charged before the lesson to avoid interruptions