Grade 3 · 3D Printing · Lesson 16

Pollinator Habitat Module

Create a modular model that demonstrates how small spaces can support helpful insects.

Time3 × 60 minutes + adult fabricationTeamsTeams of 3–4EquipmentCardboard + Bambu P1S fleet

Project inspiration · 3 images

See, build, and test

Use these images to understand the kind of making, details, and testing involved. They are inspiration—not designs students must copy.

Finished student example for Pollinator Habitat Module
01Finished project
Close construction and materials view for Pollinator Habitat Module
02Construction detail
Students testing and recording results for Pollinator Habitat Module
03Student testing

Student directions · Grade 3

What will you make and do?

You will make a small demonstration model that shows shelter, drainage and connected habitat spaces. It is an educational display, not an installed home for live animals.

Teacher overview: Students will plan the specific object described below, make and test a first version, then use their results to improve it. Read one step together, demonstrate the unfamiliar action, and let students complete that step before moving on.

  1. 1Plan your project

    Use teacher-selected habitat information to choose the features your model will explain. Sketch two stackable shapes with labeled openings.

  2. 2Make the first parts

    Build cardboard modules first. Stack them and mark where rain would enter, collect or drain in the model.

  3. 3Put it together

    Model one sturdy module in CAD with the teacher’s size limits. Add a connection feature and drainage openings, then ask for a checked print.

  4. 4Test it fairly

    Connect the same number of modules in repeated trials. Check stability and demonstrate the drainage route with arrows or a teacher-approved tray test.

  5. 5Improve one part

    Change a connection that slips or a pocket that traps water. Retest the same arrangement.

  6. 6Show and turn in

    Display the modules with accurate habitat labels and a connection test record. Explain why a classroom model is not automatically suitable for outdoor wildlife.

How will you know it works?

  • Stacks or connects securely
  • Shows protected spaces and drainage
  • Includes an accurate educational label

Before you move on

Tell a partner what you are making. Point to the part you will work on next. Draw or dictate your test notes if writing slows you down.

Machine cutting, printer setup and electrical power-on require adult approval. A basic-materials model is a valid way to demonstrate the design when equipment is unavailable.

Keep your plan, test notes and before-and-after evidence with the printable design brief below. Use the detailed teacher plan and any coding guide for tool instructions. These steps continue across the lesson’s meetings, not all in one sitting.

For teachers

Engineering standards

This shows how the lesson connects to the national NGSS engineering standards and what student work you can collect.

Assessed

3-5-ETS1-1

Teams define who needs the pollinator habitat module and set measurable performance, safety, material, and time limits.

What students show: User-centered problem statement with criteria and constraints.
Practiced

3-5-ETS1-2

Teams compare at least two circuit, code, or enclosure ideas against the success criteria.

What students show: Labeled system diagrams and a recorded design choice.
Assessed

3-5-ETS1-3

Teams run a repeatable test—sprinkle a measured amount of water and check drainage, stability, and protected spaces—then change one variable and retest.

What students show: Test table, code or build revision, and evidence-based explanation.

Materials

  • Cardboard, paper, craft sticks, tape, reusable building pieces, and student-proposed materials
  • Project platform: Cardboard + Bambu P1S fleet
  • Breadboard, paper-circuit supplies, or low-voltage power when needed
  • habitat criteria and weather observations input component or student-designed substitute
  • a stackable model habitat module output component or student-designed substitute
  • LEDs, resistors, jumper wires, copper tape, switches, and clips as needed
  • 3D Printing materials for an optional case, sign, mount, or model
  • Computer with approved coding or simulation tools when needed
  • Planning sheet, ruler, and test-data table

Teacher preparation

  1. Build and test one possible reference solution without making it the required design.
  2. Prepare a basic-materials table plus optional electronics and fabrication stations.
  3. If coding is used, prepare a starter option for repeating patterns, dimensions, and beginner CAD; students may propose another workable control method.
  4. Prepare optional fabrication templates and a file rule beginning G3_16.
  5. Mark adult approval points before power-on and machine fabrication.

Step by step

How to teach it

Day 1 · 0–20

Meet the user and define success

  1. Introduce the application: Teach visitors how shape, shelter, drainage, and safe placement can support pollinator habitat planning.
  2. Identify the user, need, criteria, and constraints.
  3. Draw a system map with input → code → output.
Day 1 · 20–60

Build a first solution

  1. Choose basic, electronic, and fabricated materials based on the team's idea.
  2. Build with power disconnected whenever electronics are used.
  3. Complete an adult check, then troubleshoot one connection or physical feature at a time.
Day 2 · 0–30

Create the behavior

  1. Create the first working control using repeating patterns, dimensions, and beginner CAD.
  2. Predict what one rule, connection, or code change will do before testing it.
  3. Make the system understandable with labels, diagrams, comments, or coding blocks.
Day 2 · 30–60

Test and improve

  1. Use the same procedure each time: sprinkle a measured amount of water and check drainage, stability, and protected spaces.
  2. Record at least three results.
  3. Change one code, circuit, or physical-design variable and retest.
Day 3

Fabricate and present

  1. Design a 3d printing part that protects, mounts, or explains the electronics.
  2. Adult reviews and operates fabrication equipment where required.
  3. Connect the finished system and demonstrate how the evidence improved it.

Assessment

  • Problem statement names a real user and measurable need.
  • Circuit matches the team diagram and uses components safely.
  • Program connects the intended input to the intended output.
  • Test conditions remain consistent and include recorded evidence.
  • Revision addresses a documented failure or user need.

Supports & extensions

  • Use color-coded wires and a photograph of each breadboard step.
  • Provide block coding or partially completed code with one change at a time.
  • Assign roles: circuit builder, coder, tester, and recorder.
  • Let students explain findings orally or with labeled diagrams.
  • Extension: add a second sensor, output, data display, or operating mode.

Safety & responsible use

  • Use only teacher-approved low-voltage classroom electronics; never connect projects to wall current.
  • Disconnect power before changing wires or components.
  • Use the correct resistor with every standard LED and stop immediately if a part becomes hot.
  • An adult handles soldering, laser cutting, printer setup, blades, and final power approval.
  • Keep liquids away from boards unless a sealed, teacher-approved sensor activity specifically requires them.

No-machine alternative

Build with cardboard, paper mechanisms, paper circuits, or a free on-screen simulator. Students may invent another safe way to model the same function, then compare ideas, test one variable, collect evidence, and revise.

Printable student design brief

The challenge

Create a working pollinator habitat module for this need: Teach visitors how shape, shelter, drainage, and safe placement can support pollinator habitat planning.

Success criteria

  • Stacks or connects securely
  • Shows protected spaces and drainage
  • Includes an accurate educational label

Constraints

  • Model is not placed outdoors without expert review
  • Uses no live insects
  • Begins with reused materials and prints only the part that adds value

Engineer’s notes

Our user needs…
The input tells the system…
Our code decides…
The output responds by…
Our test data showed…
We improved… because…
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