Our project is Project CompostCare and its theme is related to the environment and food waste. We chose this project because it focuses on solving problems related to food waste and we want to further improve the solution of using bio-digester compost to tackle food waste by addressing the possible problems additionally with the use of the bio-digester compost. Our project has three stages, mainly detection, reaction and prevention. It starts with a person pressing the button to start the bio-digester compost. The light will turn green and the object that the person wants to throw has to be shown to the camera.

The first stage, detection, in which trained data from Teachable Machine with several images of fruit peels and all inorganic objects will be fed into the Arduino Uno, which will use these data with images of these inorganic objects (orange peels/bones) to identify whether the food dropped can be decomposed or not and the code of Arduino Uno will instruct the servo-motor to open if the correct object is detected. If the correct object is thrown, the servo-motor will be activated and open the lid of the bio-digester compost.

The second stage, reaction, involves the change in colour of the LEDs, and the display on the LCD. Firstly, if an object is suitable, the green LED will switch to red, indicating that the object is not allowed in the compost machine. Apart from that, the LCD will display a text saying “Do not throw peels/bones.” or if the correct food item is shown to the camera: “Thanks for using the machine!”. This set of reaction prompts the user to remove the peels or bones. 

The final stage is prevention. If the user continues to force open the lid of the compost machine, despite the items on their plate being unsuitable for the machine, an alarm will blare, alerting the people nearby. Not only does this have other people such as schoolmates or stall owners to condemn their act, it will also ensure public humiliation of the offender. Thus, the project is foolproof. 

Through this project, we hope to promote better usage of the school's compost machine by affirming correct usage and correcting incorrect behavior. By teaching users what can and cannot be thrown into the machine, they will be more confident in using it rather than confused or unsure, and they will be more willing to use it in the future. We also hope to bring attention towards the compost machine to encourage non-users to try it out for the first time. 

The 'Green Facades' project proposes an innovative solution by integrating algae walls into urban architecture. These vertical structures harness the natural prowess of algae to efficiently sequester carbon dioxide, and generate oxygen. By optimising vertical space on building exteriors, particularly in densely populated urban areas where land scarcity is pronounced, the project wishes to harness algae’s innate benefits that go unnoticed by the general population.

So why algae? Algae absorbs 5-25x more carbon dioxide per metre cube compared to trees, single handedly contributing 50% of the earth’s carbon dioxide sequestration. (99% efficiency in carbon dioxide capture). Furthermore, algae can be synthesised to both biofuel, fertiliser, and even food and construction material, providing 4 of the most essential resources for humanity, energy, food cultivation products, food, and infrastructure. We hope that algae’s versatile nature can be the modern solution for our century-old problem and offer our algae based solutions for consideration.

Through the 'Green Facades' project, Singapore can embrace modern, more effective solutions to actively contributing to environmental sustainability and urban resilience. This approach is versatile and adaptable to a wide range of building types, including residential complexes, industrial facilities, and commercial centres, thereby underscoring its potential as a cornerstone of sustainable urban development strategies.This initiative represents a proactive step towards integrating the unseen hero of nature, algae, seamlessly into the urban fabric, aligning with global imperatives to cultivate greener, healthier cities for present and future generations, while fostering a harmonious coexistence between urban life and the natural world. 

The project prioritises residents' well-being by fostering a healthier urban environment and promoting a harmonious coexistence between urban life and nature. This holistic approach not only improves physical health but also enhances mental well-being by creating green spaces within the urban fabric. Overall, the 'Green Facades' project exemplifies a sustainable and inclusive urban development initiative that integrates environmental stewardship with community enrichment, contributing to greener, healthier cities for present and future generations.

With the 'Green Facades' project, our goal is to pioneer sustainable urban development by leveraging algae walls to mitigate air pollution, enhance biodiversity, and promote energy efficiency. We aim to create healthier, more vibrant urban environments that improve the well-being of residents while contributing to global efforts against climate change. By integrating nature into urban architecture, we strive to inspire cities worldwide to embrace innovative solutions that balance ecological stewardship with urban growth, fostering resilient and inclusive communities for generations to come. 

Our project is dedicated to advancing sustainable energy solutions for automative and electronic applications by harnessing renewable sources such as solar power, wind energy, electrolysis for hydrogen production, and exploiting temperature differences in water bodies. We aim to spread more awareness on the different ways electrical appliances can be powered, reducing reliance on fossil fuels and minimising environmental impact. Our project addresses sustainability and inclusive urban cities through innovative renewable energy solutions. By harnessing renewable sources of energy, we aim to reduce urban carbon footprints and reliance on fossil fuels, thereby mitigating climate change impacts. Our focus on electrolysis for hydrogen production supports inclusive urban development bu offering a versatile, zero emission energy source for vehicles, improving urban air quality. By integrating these technologies into existing infrastructures, we aim to make sustainable energy more accessible to all residents, contributing to healthier city. By sharing this knowledge, we hope to ignite a collective commitment to environmental stewardship and encourage widespread adoption of sustainable practices. 

We visualize the idea of an ideal city that optimises the use of different sectors including business, healthcare, digital, engineering, creative arts, defense, legal, sports and education to achieve sustainability in an urban city. Business: Encouraging start-up businesses. Startups often drive innovation, and many new businesses focus on developing green technologies and sustainable practices. This can lead to the creation of products and services that reduce environmental impact. Engineering: Making use of hydropower and the ocean. Legal: creating laws and measures to encourage sustainability and the city being sufficient on its own funds rather than on external funds. The model can highlight the benefits of sustainable features such as green roofs, renewable energy sources, efficient public transport, and waste management systems, making it easier to communicate these advantages to policymakers and investors. Engaging the community in the design and planning process through interactive models can foster a sense of ownership and commitment to sustainable practices. It can inspire architects, engineers, and urban planners to think creatively and innovate new solutions for sustainable living. Policymakers can use the model as a reference to develop regulations and incentives that promote sustainable urban development. Our model showcases the potential for a sustainable, profitable, and livable city. It facilitates collaboration among different stakeholders, including government agencies, private developers, and community groups, ensuring that sustainability is a shared goal. 

By providing a concrete representation of a sustainable city of the future, we hope to drive awareness, education, collaboration, and action towards more sustainable urban development.

“Möbius Maker” is an interactive booth designed to engage students in learning about the Möbius Strip and creating lanyards or bracelets in the form of a Mobius Strip.

A Möbius Strip is a unique surface formed by giving a strip of paper a half-twist before joining its ends, resulting in a structure with only one continuous side and edge. This non-orientable property means that while traveling along its surface, one cannot distinguish the “front” or “back” side.

At our booth, students will learn about the fascinating geometric properties and applications of the Möbius Strip in various fields, such as engineering, art, and other sectors. They will also gain a tactile understanding of its properties and its implications in modern design and innovation. This experience aims to inspire curiosity among students and foster a deeper appreciation for mathematics through geometry and topology, demonstrating how math is relevant in creating innovative solutions that ensure sustainability and inclusivity. 

Inclusivity is seen from the Möbius Strip’s continuous surface, symbolising interconnectedness and unity, inspiring designs that facilitate inclusivity and ensure that everyone is part of a single, inclusive community.

The Möbius Strip is also used in logos, such as the recycling symbol, which represents the three interdependent aspects of a sustainable loop: the collection of materials to be recycled, the manufacturing of recycled materials into new products, and the purchase and use of products made from recycled materials. Each arrow in the symbol pursues and powers the others, emphasising the dynamic nature of sustainability and benefiting everyone in the community.

Ultimately, our project illustrates the role of the Möbius Strip in advancing sustainability and inclusivity in urban environments. By fostering innovation and practical applications, we aim to inspire future urban planners and architects to create cities that are not only environmentally sustainable but also socially inclusive and resilient. 

We hope that our project educates students on how mathematical topology drives innovative, eco-friendly architecture that boosts inclusivity and sustainability in cities through examples like the Möbius Strip Temple and Twisted Colossus. This aims to inspire students, especially those aspiring to be architects and urban planners, to incorporate these principles in their careers. Ultimately, we strive to cultivate a profound appreciation for how mathematics can shape urban environments, preparing future generations to address urban challenges effectively and make our cities more environmentally sustainable and socially inclusive. 

The project introduces the various energy sources, followed by the energy capacity of the energy sources which refers to the efficiency. Afterwards, it will compare the energy generation of different energy sources worldwide. (e.g. coal produces the most energy, nuclear energy is only around 10% of total energy). It will then address Singapore's energy transition and development plan, highlighting possible development in nuclear power. The project will also showcase the growth of nuclear power and how it is expected to peak in 2025 through graphical representation. The project will then introduce the different types of nuclear reactors, their fuels, coolants and moderators. It will also show which type of reactors are the most common or most used to generate electricity. Lastly, it will address the safety concerns that some people may have about nuclear power plants. In general, nuclear power plants are safe and sustainable to use as a source of energy while also being inclusive in terms of generating a large amount of electricity from small amounts of fuel. 

The goal of the project is to help students learn more about nuclear energy. Since nuclear energy is extremely efficient, it may be one of the leading sources of energy Singapore may develop in the future to ensure energy security. It will also addresses the concerns towards the safety of nuclear power plants and how it should not be feared so as to meet the increasing importance of sustainability goals and to provide power to everyone. 

As Singapore confronts impending challenges in managing petrol depletion, the consequences are felt profoundly across the urban landscape. The escalating cost of petrol due its diminishing supply threatens the mobility and reliance of many on who are dependent on petrol-powered vehicles. Inarguably, the urgency to transition to more sustainable methods in order to ensure the safe-keeping of such a precious non-renewable resource is prevalent. However, it is almost impossible to let go of cars, which is why our innovative solution centres on the development of solar panel-equipped vehicles to significantly reduce the dependency on petrol. 

To ensure the effectiveness of our solution, we conducted an experimental comparison of three different alternatives: solar panel-equipped cars, electric cars, and osmotic cars. Our experiment revealed that solar panel cars are the most efficient and fastest among the three options, reinforcing the viability of our chosen approach. 

Our project focuses on providing a sustainable method to power vehicles as an alternative to the usage of petrol, a non-renewable energy source. Sun is our unlimited source of energy and our project suggests utilising it by using solar panels to capture light energy to power our vehicles. 

Our project presents the model of how this can be achieved . Solar energy is one of the renewable energy sources that can be used without the side effects of other environmental issues such as the release of greenhouse gases. This makes it a more ideal alternative. This will help to reduce the greenhouse gas emissions emitted from vehicles preventing issues such as climate change and global warming from further exacerbating. If solar powered vehicles are widely used instead of petrol vehicles, the estimated amount of 1.5 billion tons of greenhouse gases released from cars in a year can be reduced significantly. Thus, solar energy will be a sustainable alternative which creates a sustainable environment as well.

Furthermore, petrol is a non-renewable energy source, and there will be a continuous increase in petrol prices. This will result in fewer people who can afford to drive cars which use petrol. However, solar panel powered cars would be accessible to more people as it would be more affordable with unlimited free energy from the sun. Thus helping to form a more inclusive urban city where more people can drive cars that use sustainable energy. This encourages more people to drive solar powered vehicles reducing the usage of petrol run vehicles as well. 

Hence, our project aims to create a sustainable and inclusive urban city which is the theme. 

Our project aims to replace petrol powered vehicles with solar powered vehicles. These vehicles ensure that sustainable mobility is accessible to a wider range of people, due to sunlight being a more easily accessible resource than petrol. This makes sure that the benefits of green technology are equitably distributed to the people who find it difficult to manage the rising costs of petrol. 

We came up with 2 hands on activities (for students to experience usage of TI Rover) and a set of slides to present usage of TI rover with respect to keeping a city sustainable. Our hands on activities include drawing a recycle logo, and a solar panel grid pattern. the slides are also directed to sustainable cities by TI rover. The slides will be covering topics ranging from energy efficiency to robots promoting sustainable and inclusive living, and composting simulation in which the steps of composting organic waste will be shown. We hope to enlighten students on the usage of Graphing Calculators with TI Rover in real life applications of sustainable living/city. 

The "Safewheel Guardian" project aims to enhance the safety of individuals who use wheelchairs by integrating an alarm system. The system is designed to prevent collisions by alerting users to obstacles behind them. Our target audience includes people who rely on wheelchairs for mobility and often travel independently.

The project utilizes a TI-84 Rover, a graphing calculator, and various components to create a functional alert mechanism. The key elements include a wheelchair, tape, a sound system comprising an Arduino Uno, jumper cables, speakers, buttons, and a breadboard. The TI Rover measures the distance of objects behind the wheelchair and triggers an alarm system based on proximity. When an object is detected within 1 meter, a sound alert is activated. As the object moves closer to 0.5 meters, a more frequent ringing tone is emitted to warn the user of the imminent collision.

This innovative system leverages the TI Rover's ability to measure distances and its mechanical interaction with a modified wheel, which presses a button connected to the sound system. The project ensures that the user is continuously aware of their surroundings, thereby enhancing their safety and confidence while navigating.

Our approach combines practical engineering solutions with everyday usability, making the Safewheel Guardian a valuable tool for improving the lives of those who depend on wheelchairs for their mobility. In Summary, the Safewheel Guardian not only aligns with the principles of sustainability through its use of existing technologies and durability but also promotes inclusivity by enhancing the safety and independence of wheelchair users in urban settings.

With our project, "SafeWheel Guardian," we aim to enhance the safety and independence of wheelchair users by preventing collisions with obstacles. Our goal is to create an inclusive urban environment where wheelchair users can navigate confidently and safely. By integrating this alert system, we hope to reduce the risk of accidents, improve the quality of life for individuals with mobility impairments, and promote greater participation in community activities. 

A mobile application (app) offers a cost-effective solution, accessible to wider audiences, addressing affordability. Partnerships lower costs further by subsidising expenses, ensuring better accessibility to mental health support. Tackling stigma and awareness, our app includes anonymous support groups for comfort. Inconspicuous glasses help individuals comfortably accept treatment, as attention drawn to their condition will be reduced, reducing stigma associated with OCD and promoting acceptance and support within society. Addressing cultural sensitivity, the app allows users to change languages. Usage of digital products is crucial, as youths are more likely to use and benefit from digital health interventions, as their perspectives are essential for developing innovative, tech-based solutions.

Introducing SteadySteps — Habit Tracking Glasses, encompassing AI technology and sleek design, paired with our comprehensive app, forming a product to improve OCD patients’ lives. The Habit Tracking Glasses contains a camera powered by AI-based technology, monitors behaviour (enables spotting of abnormal recurring patterns). 

Our comprehensive app has a few features, which include: 

Feature 1: Progress monitoring and insights

App monitors users’ behavioural trends, creates achievable goals while measuring progress so they can monitor advances in mental well-being, and visualise patterns and causes of compulsions.

Feature 2: Offline AI-powered Chatbot & Anonymous Support Groups

Users can confide in our offline AI-powered chatbot for support with anxiety. Assistance is available for app/glasses issues. Feedback is requested for continuous improvement. Anonymous support groups offer a safe space for youths to gain support, with face verification to prevent trolling.

Feature 3: Relaxation features

In-app relaxation music, guided meditations, deep breathing exercises, and coping techniques promotes mindfulness to reduce stress. Furthermore, to ensure best user experience, overlooked details that should not be forgotten include;

a) User-friendly designs

Glasses and app feature intuitive interfaces for easy navigation — tab bars, in-app gestures, and graphics for user-friendly interaction. Users can contact the helpdesk for setup guidance through the profile menu.

b) Colour Scheme

Colour affects stress and physiological responses – cooler colours reduce heart rate. Inspired by the National University Health System (NUHS) app, our app utilises a white background with blue accents, lowering stress levels.

We plan to tackle the lack of accessibility and support for OCD. Our survey conducted showed that only 9.4% of respondents think OCD patients receive adequate assistance. SteadySteps puts assistance at the patients' fingertips. The habit-tracking glasses track users' movements in real time, giving instant feedback and raising awareness on compulsions, allowing them to break compulsion cycles. The glasses’ inconspicuous design reduces stigma attached to mental health aids. AI-driven chatbots and relaxation software manages anxiety, minimising triggers. SteadySteps is a cost-effective, user-friendly, and accessible OCD treatment. SteadySteps offers comparable advantages at a reduced cost, making it a worthwhile purchase for OCD sufferers.

Our booth showcases the huge potential for Black Soldier Fly to tackle one of the world's biggest problems: Food waste. It consists of 3 stations.

Through the following 3 discovery stations, students are guided through an experiential journey to explore the role the amazing Black Soldier Fly (BSF) plays in a circular food ecosystem:

(1) BSF Life Cycle Showcase

Learn what the Black Soldier Fly (BSF) does at different stages of its life cycle, and how it helps us in our food security and sustainability journey. Observe the neonates and larval BSFs as they chomp on leftover food waste, and be guided by our experienced facilitators in such a way that the students will not be afraid to hold the hungry larvae in their hands as the little creatures actively feed on food waste.

(2) BSF Larvae Race

Cheer for these little new friends as they compete in a race, and be impressed by how fast the BSF larvae can move and feed! This helps to dispel any fear of slimy worms that urbanites might have, encourages the students to learn more about this beneficial insect, and better appreciate the urgency to race to reduce food waste.

(3) BSF Frass Harvesting

Learn why the BSF is considered an Avenger of the insect kingdom, through its amazing superpowers, including the bioconversion of food waste to frass, a nutrient-rich fertiliser for plants. The students will be guided in a frass-harvesting activity and gain an understanding of how this closes the loop in an urban food ecosystem.

Our booth comprises of two hands-on activities: 

1. Flight simulator programme

By providing a virtual flying experience to participants, we hope to inspire them to take up AE. There is a scoring system in the program, and if participants were to attain a certain set score, they will win some small prizes.

2.  3D Pens experience

In this section of our booth, 3D Pens are used by participants to draw and create their own designs. This is an interactive activity to attract participants and inspire about the possibility of 3D Printing. You can get to bring home the 3D designs that you created using the 3D Pens!