Grade 7 Students at Keystone School Design Eco-Friendly Alternatives to Plaster of Paris Idols
- Keystone School
- 2 days ago
- 3 min read
Idea Loom Student-Led Conference

At Keystone School, one of Hyderabad's top international schools, learning is never just about content, it is about impact. The Grade 7 Miyawaki learners demonstrated this beautifully through their project "POP: At What Cost?", a deep, student-driven inquiry into one of India's most pressing yet often overlooked environmental concerns: the pollution caused by Plaster of Paris idols during festival immersions.
Guided by the Idea Loom approach and rooted in the inquiry-first philosophies of the Cambridge curriculum and the IB curriculum, this project is a compelling example of how project-based learning transforms students from passive learners into active problem-solvers.
The Problem They Set Out to Solve
Every year, thousands of POP idols are immersed in water bodies during festivals across India, releasing toxic chemicals, disrupting aquatic ecosystems, and leaving behind non-biodegradable residue. The Grade 7 Miyawaki learners asked a simple but powerful question: Does tradition have to come at this cost?
Their project aimed to find eco-friendly, affordable alternatives to POP idols that would:
Reduce water pollution caused by idol immersion
Lower production costs for artisans
Make idols easier to handle and transport
Keep cultural practices alive, sustainably
How They Investigated
The learners followed a structured inquiry process, researching how POP contributes to water pollution and exploring sustainable material options including clay, red soil, and other natural alternatives. They didn't just research, they experimented, tested, gathered feedback, and iterated through multiple prototype cycles before arriving at a final solution.
This hands-on, evidence-based approach reflects the core spirit of the Idea Loom Student-Led Conference: students owning their learning from question to conclusion.
Design Thinking in Action

Before settling on a solution, students sketched and conceptualised multiple idol designs, testing each material combination for durability, eco-friendliness, ease of crafting, and real-world cost. Every decision was backed by experimentation and peer feedback, developing both creative confidence and analytical thinking along the way.
The Final Solution

After extensive testing, the Grade 7 Miyawaki learners arrived at a sustainable material composition that balanced ecological responsibility with structural practicality:
Clay, 60%
Shadu Clay, 15%
Red Soil, 15%
Mud, 10%
This carefully tested blend ensures eco-friendly decomposition, structural stability, and ease of crafting, making it a genuinely viable alternative for artisans and communities alike.
Why This Matters
This project goes beyond a school assignment. It addresses a real environmental challenge affecting communities across India and offers a scalable, cost-effective, and culturally sensitive solution. The students demonstrated that sustainability and tradition are not opposites, they can and should coexist.
Presented with Confidence at the Idea Loom SLC
At the Idea Loom Student-Led Conference on March 7th and 8th, the Grade 7 Miyawaki learners presented their research, prototypes, and findings to an engaged audience. They explained their design decisions, demonstrated their material compositions, and answered questions with clarity and ownership, reflecting the kind of learning that stays with students long after the conference ends.
Come See This Kind of Learning in Action
If you want your child to investigate real problems, design meaningful solutions, and grow into a confident, compassionate thinker, Keystone School, Hyderabad is where that journey begins.
📍 Book a School Visit to experience our campus and the Idea Loom approach firsthand.
📞 Call us or fill out our enquiry form to learn more about admissions for the upcoming academic year.
🌐 Visit www.keystoneschool.in to explore our programmes and community.
Keystone School, Hyderabad | Idea Loom Student-Led Conference | March 2025





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