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Tidal Defenses

The Tidal Defenses lesson introduces students to tidal defenses and how shorelines and riverbanks are protected from hydraulic erosion. Students begin by studying what tidal defences are and how they work. This is followed with a quick pop quiz to check student’s knowledge retention and rationalize their learning with real world situations. In the hands-on section of the lesson, students research, prototype, design and 3D model their tidal defense solution before 3D printing a scale model of their chosen design . This scale model will be inserted in a wave box and tested to study its effectiveness.

Subjects: Design and TechnologyScienceHumanitiesMathematicsComputing
Years | Grades: 9th Grade | 13-14 years10th Grade | 14-15 years11th Grade | 15-16 years
Duration: Lesson 1: 90 minutes Print time: ~ 30 minutes Lesson 2: 30 minutes

Objectives

Be able to describe the purpose of tidal defenses
Be able to explain how recurved walls and rock armor tidal defenses work
Design and 3D model a tidal defense solution
3D print and test a tidal defense solution

Tools and equipment

BE3D eDee printer with PLA filement
Computer with mouse, and CAD software
Art supplies for sketching prototypes
Set of 3D printed example wall models
3D printed wave box
Printed lesson resources

Skill requirements

To participate in the lesson, students should be able to:

Carry out simple online research and navigate the Internet safely
Use TinkerCAD, Fusion 360 or similar CAD software at a beginner/intermediate level
Be comfortable using DeeControl software including adjusting print settings
Use the BE3D eDee printer

3D models overview

Total print time 17 hours 30 minutes
Total filament 53.5 m
Additional non-printable components
Printed all at once

Wave Box

8 hours 30 minutes
35.6 m

Example wall 1

2 hours
5 m

Example wall 2

2 hours 30 minutes
5.3 m

Example wall 3

2 hours 30 minutes
3.8 m

Example wall 4

2 hours
3.8 m

Note: Values are calculated for one set of models.

Lesson resources

Lesson plan
Example wall models
Wave box model
Worksheet
Walkthrough
Walkthrough video
Presentation
3D models
3D print instructions
Curriculum Alignment: ISTE standard compliant

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