Lesson 1
About the lesson
Goals:
- learn the basics of electricity and its properties
- study the influence of electricity on human life
- build a telegraph
- build a Morse code receiver
- visualize data using Arduino
Expected results
- Students should develop an understanding of:
- finding an idea for a project
- the influence of electricity on human life
- studying literature in this area, working with sources
- creation of project prototypes
- improvement of the prototype based on the data obtained
Interdisciplinary communication
- Physics (electricity and its types)
- Physics (working with electronics, computing)
- Computer science (programming)
- Technology (assembly of telegraph prototype)
Introduction
Electricity is an amazing phenomenon that permeates our daily lives and plays an important role in modern society. It arises from the movement of electrical charges, most often electrons, in conductors. Electricity was originally known only as a strange effect where the friction of different materials created a static charge. But with the development of science and technology, it became clear that electricity can be a controlled and useful phenomenon.
With the advent of electricity, revolutionary inventions arose, such as the incandescent lamp, telephone, electric motors and many others, which radically changed industry, communications and people’s lives. Today, electricity has become an integral part of our daily lives, providing lighting, powering home devices, computers, mobile phones, and is also a key component in production processes and transport.
Electricity plays an important role in communication, enabling the transmission of information over long distances at high speed. Here are some ways electricity is used to communicate:
- Telephony
- Internet
- mobile connection
- Radio and television
- Social networks and instant messengers.
That’s why our project focuses on electricity as a tool for communication. A telegraph model would be designed to transmit electrical signals from a transmitter to a receiver. The telegraph will be connected to the microcontroller and process the data. In this way we will study electricity, we will be able to simulate the telegraph and we will see the data coming from the telegraph and decipher it.
Resources used:
[1] Use of electricity, https://www.eia.gov/energyexplained/electricity/use-of-electricity.php#:~:text=People%20use%20electricity%20for%20lighting,machinery%2C%20and%20public%20transportation%20systems
[2] Importance Of Electricity In Our Daily Life, link.
Lesson 1. Introduction to the project “Determination of water quality to understand human influence”
Goals:
- learn the basics of electricity and its properties
- study the influence of electricity on human life
- build a telegraph
- build a Morse code receiver
- visualize data using Arduino
This stage of the lesson explains the nature of electricity and its properties, types of electricity and units of measurement.
Next, we discuss together the influence of electricity on human activity.
Group work to study what stages they go through before getting to our home.
Division into groups:
4 groups for each type of human activity
- how to get electricity?
- how to transfer?
- how to convert?
- how to save for use?
Each group recalls how electricity moves through these stages.
| How to get? | How to transfer? | How to convert? | How to save? |
Next, students explore the historical phenomenon as the “War of Currents” [1]. Mini-research on the topic “War of Currents”.
We will talk about the struggle between alternating and direct currents. After this, the table is filled out and a discussion takes place.
| Supporters | pros | Minuses | |
| Direct current | |||
| Alternating current |
The lesson is summarized and reflection is carried out.
- Tesla vs Edison: The Rivalry of the Ages, https://meroli.web.cern.ch/blog_tesla_vs_edison.html#:~:text=Edison%20championed%20direct%20current%20(DC,between%20AC%20and%20DC%20systems.