Building Simple Machines

Context

This is Lesson 1 of 4 in the unit Innovative Technology Explorers designed for Years 4-6 students in New Zealand. The lesson focuses on hands-on exploration of simple machines, specifically levers and pulleys, constructed using cardboard and hot glue guns. Instruction will be delivered in te reo Māori approximately 51%-80% of the time to support language learners and align with the Te Marautanga o Aotearoa framework.

The class consists of 22 students from years 4 to 8 with diverse learning and behavioural needs in a rural Auckland context. The lesson plan emphasises active, collaborative, and kinaesthetic learning to engage students effectively.

Learning Objectives

By the end of this 120-minute lesson, students will:

Understand the basic concepts and functions of simple machines: levers and pulleys.
Construct a simple machine (lever or pulley) using cardboard and hot glue guns.
Demonstrate how their constructed machine works and explain its function.
Collaborate effectively within small groups, applying problem-solving and communication skills.

Alignment with Te Marautanga o Aotearoa

Pae Tawhiti 1 (Te Ao Tukurua me te Ao Hangarau - Technology strand)
Whāinga ako:
"Kia mārama ngā ākonga ki ngā tikanga hanga taputapu me te whakamahinga o ngā taputapu māmā pērā i ngā kete tepu (lever) me ngā pōro hurihuri (pulley)."
"Kia whai wāhi ki te mahi ā-ringa kia hanga i tētahi taputapu māmā i ngā rawa ngawari."
Ngā pūmanawa:
Whakahaere i te whakaaro auaha me te raruraru (creative and critical thinking).
Mahi tahi ki ētahi atu kia tutuki ngā mahi (collaboration).
Aromatawai:
Te whakaatu i te mahinga i ngā taputapu māmā me te whakamārama i ā rātou mahi.
Competencies developed:
Whanaungatanga — building positive relationships through teamwork.
Ngā Pūkenga Matihiko — using tools (hot glue guns) safely and effectively.
Wheako ā-Ringa — experiential hands-on learning appropriate for multilingual and diverse learners.

Materials Needed

Cardboard sheets (recycled if possible)
Scissors (safety scissors where appropriate)
Hot glue guns with adult supervision
String or thin rope for pulley
Small circular objects (bottlecaps, spools) as pulley wheels
Rulers or sticks to act as lever arms
Paper and pencils for sketching ideas
Visual aids (picture cards showing simple machines in action)
Whiteboard and markers for lesson introduction
Protective coverings for tables and aprons for students

Lesson Breakdown (120 minutes)

1. Introduction and Whakawhanaungatanga (15 minutes)

Greeting and Karakia: Begin with a welcoming karakia and mihi in te reo Māori to set a respectful tone.
Engagement Question: Ask students if they have seen machines or tools that help do work more easily (e.g. seesaws, flagpoles).
Introduce Simple Machines: Use picture cards showing levers and pulleys in everyday contexts.
Key Vocabulary: Introduce and repeat words such as kete tepu (lever), pōro hurihuri (pulley), painga (advantage), pēhanga (force).
Relate to Students’ Lives: Ask about tools or objects at home or kura that work like levers or pulleys.

Teacher Tip: Use visuals and scaffold language with sentence starters in te reo Māori to support new speakers.

2. Exploration/Demonstration (20 minutes)

Show a simple lever and pulley model made from cardboard or real objects.
Demonstrate how a lever makes it easier to lift a weight.
Demonstrate how a pulley changes the direction of force.
Explain in simple te reo Māori and English, checking understanding by asking questions.

Include a safety briefing about hot glue guns.

3. Planning and Design (15 minutes)

In small groups (3-4 students), have students sketch ideas for either a lever or a pulley system using their paper and pencils.
Prompt them to decide roles: cutter, builder, designer, tester.
Teachers and teacher aides circulate to support language and understanding.

4. Construction (45 minutes)

Students construct their machine using cardboard, string, and hot glue guns.
Teachers monitor safety carefully, assisting with glue guns.
Encourage students to problem-solve as they build, asking:
“How can we make it lift a heavier object?”
“Can the rope move freely over your pulley?”
“Where is the fulcrum of your lever?”
Promote te reo Māori phrases during construction like:
“Me pēhea tā tātou hanga?” (How will we build this?)
“Me whakamātautau anō” (Let's test it again).

5. Demonstration and Explanation (20 minutes)

Groups demonstrate their machines to the class.
Each group explains how their lever or pulley works using simple sentences or phrases in te reo Māori.
Encourage positive feedback and questions from peers using sentence frames:
“He pai tō mahi nā...” (Your work is good because...)
“Kei te pēhea te āwhina o tēnei taputapu?” (How does this tool help?)

6. Reflection and Consolidation (10 minutes)

Whole class discussion: What did you learn about simple machines? What was easy or hard about building?
Write key points on whiteboard in simple sentences both in Māori and English.
Use thumbs-up/thumbs-down or emoji cards for students to self-assess their contribution and understanding.
Suggest students draw or label their machine as part of follow-up homework.

Assessment

Formative assessment during construction and demonstration:
Observe students collaborating and using problem-solving.
Note use of vocabulary and ability to explain machine function.
Check students meet Success Criteria:
Created a working lever or pulley.
Can explain its function in simple language.
Use bilingual sentence prompts and peer feedback to assess understanding.

Health & Safety

Supervise hot glue gun use closely, with clear instructions and protective aprons.
Provide safety scissors, ensuring correct handling.
Maintain calm group settings, allowing movement breaks if needed.
Ensure all materials are safe and environmentally friendly.

Teacher Reflection Prompts

Did students engage with the hands-on activity and te reo Māori support?
Which scaffolds worked best for students with language difficulties?
How did the collaboration impact behaviour and learning?
What modifications might improve the next lessons in this unit?

This lesson supports the values of Te Marautanga o Aotearoa by reinforcing cultural identity through language, fostering collaboration, practical skills, and enabling students to participate confidently in technology learning relevant to their world.

Note: This plan is flexible to accommodate range in years 4-8 and diverse student needs, supporting scaffolded bilingual delivery and active learning.

If you wish, I can also help develop detailed lesson 2-4 plans or provide resources for te reo Māori vocabulary around technology and machines.

Teaching Instructions