3ºESO TECHNOLOGY

 FIRST TERM:

1. Introduction to technology

2. Drawing.

3. Technical Materials. Plastics & Construction Materials

* Internet, Computer-Aided Design, Word.

SECOND TERM:

4. Mechanisms.

5. Energy and its transformation.

*  Excel

THIRD TERM:

6. Electricity

7. Electronics

* Scratch

        (*) Guided project: Design and build.

1.     Introduction to technology

Technology is based on scientific knowledge, used to create products and goods that solve problems within society. For instance, the technological advancements made to date have enabled us to travel great distances and even go into outer space. We live in large cities, which provide all different kinds of  services and are now able to build extensive infrastructure, in order to reach the most remote settlements on Earth. We have even been able to develop communication systems that bring us all closer together. However, the biggest hallenge technology is faced with is improving the quality of life of the world’s population, bridging the gap between developed countries and countries in which the population can barely survive.

vocabulary: 

https://1drv.ms/w/s!AuEiOESWH9G-kSDN-SPMRKuVPQ-5

Resources:

- Technological process:

https://drive.google.com/file/d/0B4nN28DjoyIBUGFLSnU5SUFickk/view?usp=sharing

- Technology project´s memory:

https://drive.google.com/file/d/0B4nN28DjoyIBcVpoR3pFeE9oTVE/view?usp=sharing

2.     Drawing.

In this unit you will study the various ways that everyday objects can be analaysed in order to obtain Human beings have an innate need to communicate with one another. Well before written languages appeared, we drew pictures, since drawing meets the human need to express ourselves and convey our ideas and feelings.

There are two different types of drawing. Artisticdrawing is free, has no restrictions and plays with textures, colours and a wide range of artistic techniques. Technical drawing, on the other hand, was developed as a universal language capable of communicating ideas that enabled technicians and scientists to convey their knowledge, in order to build objects.

In practice, the distinction between the two types of drawing is not quite so clear. Artists must master technical drawing techniques, since they use them in many of their works. Furthermore, engineers, architects and scientists may also apply artistic techniques to the final presentation of their work, in order to make it more expressive.

   

Resources:

- Exercices:

https://1drv.ms/b/s!AuEiOESWH9G-kTG3hq--iGBI19ey

- Scales:

https://1drv.ms/b/s!AuEiOESWH9G-kUAOimndrnheiq-V

- Calliper.

https://1drv.ms/w/s!AuEiOESWH9G-kUIpDIyECttddMZ4

- Micrometer:

https://1drv.ms/w/s!AuEiOESWH9G-kUEIET_0QUzcaSda

     

3. Technical Materials.

Researchers in the petrochemical industry are responsible for creating new compounds that meet  our needs, whilst providing materials with new uses and properties.

Plastic has become and continues to be the most widely used artificial material of the 20th century. There is an enormous variety of plastics around us: planes, trains, cars, houses, furniture and countless other objects contain plastic.

However, the environmental impact caused by the uncontrolled disposal of synthetic materials, especially plastics, brings about the pollution of rivers, mountains, valleys and oceans for hundreds of years. Therefore, our highly consumerist society must use and dispose of these materials responsibly.

Construction Materials: After exploiting the areas nature made available to human beings for refuge and shelter, they began to modify them and build new homes ever since tools were invented and they developed the ability to transform them. In addition to other materials you have studied in previous years, which are widely used in construction, for example wood and metals, we will now study petrous or stone materials, which originate from rocks.

Introduction.

        https://1drv.ms/b/s!AuEiOESWH9G-kUTCJyutJXqsT0KH

Resources:

4. Mechanisms.

Forces and energy surround us and we are continuosly affected by them. Humans first started to develop technology with the use of primitive tools and implements, which enabled them to perform task more easily than when they just used their hands. Over time, humans have created mechanisms and machines to control their environment and, as result, use it for their own benefit.

There are many different kinds of mechanisms: some convert motion, others transmit it and some change speed. The purpose of mechaisms is to  help us create objects that makes our lives easier.

Vocabulary: https://1drv.ms/w/s!AuEiOESWH9G-kWZo2GSH6IVWgJYn

Vocabulary2: https://1drv.ms/w/s!AuEiOESWH9G-kxGueJGYvaNv7mlY

LEVERS AND CAMS: https://1drv.ms/b/s!AuEiOESWH9G-kWWluqM8fzm_B4bL

Resources:

Mechanisms. BBC

Mechanisms.

Gears and pulleys

5. Energy and its transformation.

Electrical energy is the most common form of energy used in industry and in homes. This is because is easy to obtein and transform into heat, light, movement, etc. It is also easy to distribute and control.

However, electricity, presents one mayor disadvantage: it is difficult to store and can be only store in small amounts.  Excess electricity produced is not consumed and as a result, overloads the electrical grid.

          Vocabulary:  https://1drv.ms/f/s!AuEiOESWH9G-kxpe8DtcicgP-R3s

Resources:

Alternator: https://www.youtube.com/watch?v=tiKH48EMgKE

Alternator subtittles: https://1drv.ms/b/s!AuEiOESWH9G-kxhN0f0DuVcipP7z

6. Electricity.

2500years ago, Thales watched amazed as a mysterious force appeared when he rubbed a piece of amber on the skin of an animal or cotton cloth. This force attracted smaller pieces of lightweight material like dust or papyrus. He could not imagine then that he was witnessing one of the most powerful forces of nature, electrical energy.

Between then and now, humankind has been able to master electricity and place it at our disposal in virtually every activity. We have been constantly adding electrical devices to our lives and nowadays we can not imagine living without electricity. Would you accept the challenge of trying to spend 24 hours without using electricity? Try it and take note of the moments in which you could not avoid using it. By the end of the day, you will surely have a long list.

 Vocabulary: 

    https://1drv.ms/b/s!AuEiOESWH9G-ky3NjfEdNiqnUOet

Resources:

7. Electronics.

Electronics is one of the most prolific branches of science, which developed as result of efforts made across various disciplines. Research carried out over the past two centuries has enabled us to dominate electricity, whilst increasing our knowledge of different materials, atoms and the behaviour of the particles from which they are composed, has given rise to many different electronic devices.

It is impossible to imagine life at its current pace without electronic systems. Indeed, it is thanks to electronic developments that we can use our mobile phones, IT systems, control systems, aeronautic devices and an endless range of products that play an important role in our daily lives.

In this unit you will learn about semiconductors and electronic devices, such as diodes and transistors, and also about those circuits in which these elements are used to control the flow of electrons.

Vocabulary: 

              https://1drv.ms/b/s!AuEiOESWH9G-kzGFD5kKYFegtetP

Resources: