Education in 1970s-80s

Television or simply TV, is a communication system that allows images and sounds broadcast in electromagnetic waves from a transmitter to be converted back into images and sound by electronic receivers with screens and speakers.

Television is used for many purposes. It is used in social life as media and communication center. Television is used for communication, transportation, educational, instructive and information.

Television was invented in 1923 by John Logie Baird in Hastings, UK. Color television was invented in the 1940s. The first color television set went on sale in the USA in the 1950s, but color television was widely used in the USA in the 1960s.

Videotape is a magnetic tape used to store video and additionally sound.The stored information can be in the form of an analog data or digital signal. Videotape is used in both video cassette recorder and video recorder.

The world's first videotape recording show was played in Los Angeles on November 1, 1951.

Print materials consists of all written material, excluding non-print resources, which convey planned course information.

flashcards, newspapers, magazines, books, photographs, drawings, encyclopaedia, pre-recorded magnetic audio tape etc.

It is extremely portable, cost effective, readily available, and comfortable to use. Students don't need special equipment to use it, and with adequate light, print materials can be used anywhere at any time. Students can review the materials at their own speed.

No interactions: Print materials do not generally provide built-in interactions. Additional technologies, such as e-mail, must be supplemented.
No audio/visual elements: Print materials are static and are not appropriate for teaching languages and visual concepts.
Require reading skills: If the learners are non-readers or language skills are required, print materials will not be effective.
Time delay: It may take days or weeks for printed matter to travel between student and teacher.

There are 3 mechanisms on how to select print materials:
1. Appropriateness of the print material to the planned course
2. Readability of text and appropriateness of the vocabulary and content of the print material to the age/maturity level of the students for whom the material is intended.
3. The material shall be screened for accuracy of the content and shall be free of bias (sex, race, religion, ethnic)

First used in American army in 1945s.

Reflect the texts by magnifying them.

In the 1950s and 1960s the education and business
world began to use.

Used in education, medicine, the military, meetings
and conferences.

Making the presentation understandable in crowded
meetings.

It is reflection of the image on a screen at the by reflecting
it to the lenses with a strong projector light.

It began to used in 1. and 2. World War.

Provides permanence and clarity in presentation.

The first photocopier was invented by Chester Carlson in 1938. Copier machine was developed by the American company Xerox in the 1960's. Today, many photocopiers copy documents with the help of toners made of carbon element.

It draws the paper to the copier and prepares the paper for the document we want to copy. Then the reel inside moves the paper while writing. Again, the cartridges and black tubes inside serve to distribute the ink during copying.

Today, the copier, which has a wide variety of models, is used in many institutions and organizations such as all kinds of offices, schools, courthouses.

Copiers are not only functional, but also help you to save space. The copier can be operated very comfortably with a single cable without many devices. Thus, it also contributes to energy saving.

In a letter written in 1814 for the first time, Pillans describes how he used a chalkboard and mentions the colored chalk he invented. Blackboards made of slate have spread around the world since 1815. Over time, whiteboards painted in matte black instead of slate were hung on the classroom walls.

Blackboard chalk is not made from real chalk. Wood chalk is used for writing on hard objects. It is made of calcium sulfate. Because chalk is softer. Can be used to erase writing on a board eraser or water chalk.

School, kitchen, construction, and some homes often use chalkboards and chalk. However, they are just a few of the two important materials that are about to be forgotten in today's technology.