General Info
The Folklore Museum of our town wants to do a renovation and at the same time, with those changes, save energy. So, this is the project that this learning scenario is based on. Students will deal with the lighting of this renovation as professionals would have done, for that reason they need to become “experts in a week”. Collaboration for this practice, will start with teachers; a physics teacher, an electrical engineer, an IT teacher and an Art teacher from the school, will work together to organize it and with different activities transform students into experts. Students, working in teams, will first learn about semiconductors and diodes, to understand LED, how it works and advantages, next step will be about LED lights in electric circuits and how LED lights save energy, also about luminosity, light intensity and lighting. Continuing, will deal with some applications to control LED light and lastly, the students will learn about artwork and the lighting it needs. With this comprehensive knowledge, students will begin to design how to illuminate the works of art in the museum and promote sustainability. This educational STEAM practice for students, aim to develop the necessary knowledge and at the same time, during the procedure, to acquire the essential, for this era, skills.
Audience and Educational Framework
Educational Details
1.Introduction - 45 min
The manager of the folklore museum is visiting our school to talk with the students about the renovation and what is asked from them, as if they were a company with experts. The project is to use LED lights to light up the art work in the museum. The manager is talking and informing students for about 20 minutes. Then some examples of how do LED lights used in art work are shown, so students get some ideas. 1.Picture Lights - Artwork Lighting Options - Lamps Plus 2.LED Gallery Lighting: Lumicrest LEDs compared to old halogen lights 3.LED Lighting Design Project For Museum lighting with LED focus spotlight 4.Art Gallery Lighting Australia & New Zealand | LED World. A discussion about the project takes place and students should write on a Padlet wall their ideas about the museum project and what impressed them about the LED lighting.
2. Physics - 90 min
The first hour of this lesson is for students to understand the LED technology, so they need to understand semiconductors and diodes. The teacher starts a discussion to see what knowledge students have or misunderstandings might exist. When they conclude about semiconductors, they introduced in the diode. An animation of how a diode is working is shown: Animation | How a P N junction semiconductor works | forward reverse bias | diffusion drift current . Then, students will be grouped and watch a simulation: phet.colorado_ semiconductor simulation. Still in groups students will exercise in this simulator by changing the characteristics of the diode and the model: Simulator of Diode Characteristics. They will present their results of the simulation and correlations that might be found, in class.
Next hour, students will deal with LED technology. Light Emitter Diode is presented by the teacher and those videos help to explain better how LED works: LEDs and OLEDs - How it Works, Inventors, The LED - How LEDs work? Every group must do a research to find out what are the advantages and disadvantages of LED lights. They present their findings in the classes. At the end, students will answer a poll, with polleverywhere app; concerning their understanding of LED technology, if they are positive in using LED lights and will they use it for the museum renovation.
3. Electrical Engineering - 135 min
In electricians' laboratory students will remember some basics about LED lights and after watching this video : Experiment with led lights, will have to construct this small circuit, by working in pairs, and manage to light it up with the use of the right resistor. The second exercise is for the same pairs of students, to connect in a series circuit 5 different color LED lights, a battery, a switch, a resistor and cables, and light it up. The last minutes of this hour, students will present their circuits and talk about problems might appear and solutions they gave.
Next hour in the laboratory is about Light terminology and there is a discussion about the terms used and can be found in every LED bulb’s characteristics. Also Integral LED - What are lumens? and Lumens per Watt & LED Efficacy are presented. Next step, will be the connection of a dimmer switch to a LED bulb that each team need to construct. Students, will present their circuits and then will answer a small Kahoot about the correlations between Voltage, Current and Resistor using the brightness in LED bulb and the dimmer switch.
Latter, students will deal with sustainability. A discussion about new ways to reduce energy, how the latest lighting technology can save energy with the use of sensors is starting with the guidance of the teacher. Afterwards, students will create their final teams that will work their project and start exploring online for ways to use this new LED technology and sensors in their project to succeed better energy savings with green lighting. Every team will prepare a list with the ideas and the products they choose to work with, referring to the reasons for that.
4. Informatics - 45 min
In this lesson students will learn how they can control LED lights/strips with their phones using online applications. They can change the color or brightness, but also can change the light of the LED light/strip according to the rhythm of the music. The online applications that students will use are: Philips Hue , duoCol Strip and LED BLE . Students must work in groups and create a script where they will use the lighting application accordingly. Every team will present their work and will explain the reasons they chose those characteristics, any problems might appeared and if the application was easy to use and if would recommend it.
5. Art - 270 min
The “art-part” starts with the final teams working for their project. Students will download some free online apps to measure the light (as Lux Meter, Lux Light Meter Free ,Smart Luxmeter etc). Next step is to visit the folklore museum and do a research about the existing lighting, take light measurements and photos before the renovation. Subsequently, back in school, there is a discussion with some theory of artwork, colors and the importance of proper lighting in artwork, followed by research students will do online to find ideas about their project. It is proposed that students check videos from the Smithsonian American Art Museum concerning lighting. They can use Evernote or Trello to gather and organize their information from the research they have done, also in previous lessons. Then every team need to decide what will be their complete proposal for the museum manager, based on arguments. After that, students must prepare their presentation to communicate their proposal in order to convince the manager of the museum that they have the best and most reliable idea that fits the demands of the museum. Ultimately, with the museum’s manager joining us in school, every team will present their project, with the participation of all team members and using a study/poster/painting/design they created.
- Through physics lessons, understand semiconductors, diodes and LED lights.
- Through electrical engineering lessons, be able to connect diodes and LED lights. Also to raise awareness about sustainability and energy savings with the use of LED.
- Through IT lesson, carry out measurements and control devices with online applications.
- Through art lessons, learn how to properly light up artwork and the importance of it.
- Through the entire scenario, search and synthesize gathered information, incorporate their previous knowledge to make new.
- Through the entire scenario, develop skills inbuilt to scientific work like observation, research (to select, examine, understand and critically evaluate the information relating to specific conditions for the project), testing, critical thinking, problem solving and communication of ideas.
- Through the entire scenario, promote interest in the importance of science and technology in today's society and practice in a documented decision-making process.
- Students will also learn about some potential careers paths that someone can follow, for example career in physics major, in engineering specific lighting, electrical, electronic or environmental engineer, LED lights product engineer (evolve LED lights), app developer and art museum technician.
Materials:
Smartphone, Notebook, Internet, Engineering Laboratory, Printer
Online tools:
Youtube.com, Padlet, PhET, polleverywhere, Kahoot, Evernote, Trello, Simulator of Diode Characteristics
Online apps:
Philips Hue, duoCol Strip, LED BLE, Lux Meter, Lux Light Meter Free, Smart Luxmeter
Implementation
(where and how the practice was implemented)
This STEAM practice was implemented at Vocational Upper Secondary School of Amorgos from the students of the second grade of electrician specialty. The two students who participate first had the meeting with head of the folklore museum of Chora, during a visit there. Then, they attend their classes as it was planned, except the art class since in our school there is no applied arts sector. Therefore, the students attend the videos presented before. At the end, students complete their project by presenting a study on the replacement of existing light bulbs in the museum by LED lights and the energy gain from their replacement.
Students, after the completion of this week were very pleased and satisfied that they manage to deliver their project, working as a team. Because they had a goal, the theory they were taught did not tire them, for it was soon used in practice. With the research they did, they managed to complete the study of changing the lighting in LEDs. All this contributed that students develop skills like search and synthesize gathered information, critical thinking and decision making.
Educational material/resources (file/URL) accompanying the practice
English