3D printer lesson plans

Guidelines for Practice

References:

1. Mikheeva E.V. Workshop on informatics: textbook. Allowance for students. Avg. Prof. Education / E.V. Mikheeva. -10th ed., Ster.-M.: Publishing Center "Academy", 2014

2. Plotnikova N.G. Informatics and information and communication technologies (ICT): Textbook / N.G. Plotnikov. - M.: ITs RIOR: NITs INFRA-M, 2014. - EBS

3. Sergeeva I.I. Informatics: Textbook / I.I. Sergeeva, A.A. Muzalevskaya, N.V. Tarasov. - 2nd ed., revised. and additional - M.: ID forum: NIC Infra -M, 2014. - EBS

Inter -chamber communications:

Information technologies in professional activities

Purpose:

Prepare students for work in the lesson

Lecturers:

1. Form the total mood of students for effective work at employment 9000 905 2 Check room and group readiness for work

Methods:

1. Self -checkpoint

2. Conversation

Students' tasks:

1. Check your readiness for the lesson

2. Title for efficient work

1. Self test

2. Mutual test

Step contents:

Mutual greeting

Accounting for those present

Setting students to work, organizing attention

Leading question: 9000 Look at the screen3

What do you think we will do at the lesson?

Suggested answer:

Learning how printers work and using these devices

We continue to study the principles of operation of computer technology devices. The topic of our lesson: "Printing devices". What do you think is the purpose of our lesson? (Slide number 3. Lesson topic.)

Purpose of our lesson: To form the concept of the principles of operation of printing devices, to form skills in preparing documents for printing. (Slide 4. Lesson Objectives and Lesson Plan)

Teacher Question:

Where can printers be used today?

Suggested answer:

Give examples of using printers

(Appendix 1)

Slide 5-6

Purpose:

To establish the correctness and awareness of the knowledge gained in previous lessons, as well as to eliminate gaps in knowledge. nine0003

Tasks of the teacher:

1. Establish the correctness and differences of terms.

2. Identify typical errors in terminology during testing.

3. Facilitate repetition of the material covered.

4. Make timely corrections in knowledge and skills.

5. Give a brief safety briefing. nine0003

Methods:

1. Computer testing.

2. Computer analysis.

Student tasks:

1. Consolidate the concepts covered in the last lesson.

2. Learn to self-test.

Methods:

Programmable control in the Iren

Criteria setting assessments:

“5” - 90% -100%

“70% - 89%

“ 3 ”3” 3 ”3 - 60% - 69%

"2" - 30% - 59%

"1" - 29% - 0%

3. Learning new educational material

Purpose:

Ensuring perception, comprehension and primary memorization of knowledge and methods of action held in this lesson

Give a specific idea of ​​the principles LED, laser, 3D printer and plotter.

Contribute to the perception of memorizing such concepts as the principles of operation, device parameters.

Systematize knowledge and skills on the material covered, at this stage.

Methods:

Reproductive conversation using video demonstration

Explanatory and illustrative.

Tasks of students:

practice report.

Methods:

1. Conversation

2. Analysis

3. Reservation

4. Reporting of the report

(slide 5)

Problem issue:

Tell me what prints are the printing devices? What types of printers do you know? Where can you, as future professionals, use printers? Do you need them? nine0003

Suggested answer:

Printers are widely used by computer users today. The printer is a peripheral device of a personal computer. With the help of printers, you can translate text or graphics onto a physical medium from an electronic form. Thus, with the help of printers you can put text and graphics on paper, some printers make it possible to transfer electronic information to canvases and other materials, depending on the type of printer. nine0003

They are necessary for any specialist to output information from his personal computer

Teacher's speech:

Printers are printing devices for outputting information.

Dot matrix printers.

In a dot matrix printer, the image is formed on the carrier by the print head, which is a set of needles driven by electromagnets. The head is located on a carriage moving along guides across a sheet of paper; the needles strike the paper in a predetermined sequence through an ink ribbon similar to that used in typewriters and usually packaged in a cartridge, thereby forming a dot image. To move the carriage, a belt drive is usually used, less often a rack or screw drive. The carriage is driven by a stepper motor. This type of dot matrix printer is called SIDM (Serial Impact Dot Matrix). The print speed of such printers is measured in CPS (English characters per second - characters per second). nine0003

Watch a video on How a Dot Matrix Printer Works

Inkjet printers

Inkjet printers work similarly to dot matrix printers in that the image on the media is formed from dots. But instead of heads with needles, inkjet printers use a matrix that prints with liquid dyes. Dye cartridges come with an integrated print head - this approach is mainly used by Hewlett-Packard, Lexmark. There are cartridges in which the print matrix is ​​a part of the printer, and replacement cartridges contain only ink. When the printer is idle for a long time (a week or more), ink residues on the printhead nozzles dry out. The printer is able to automatically clean the print head. nine0003

View a video on the topic "The principle of operation of an inkjet printer"

LED printers

The fundamental difference between an LED printer and a laser printer lies in the illumination mechanism of the photosensitive shaft. In the case of laser technology, this is done by a single light source (laser), which, with the help of a scanning system of prisms and mirrors, runs over the entire surface of the shaft. In LED printers, instead of a laser, an LED ruler is used along the entire surface of the shaft. The number of LEDs in the line is from 2.5 to 10 thousand pieces, depending on the resolution of the printer. nine0003

Laser printers

The laser printer is a type of printer that allows you to quickly produce high-quality prints of text and graphics on plain (office) paper. Like photocopiers, laser printers use a xerographic printing process, but the difference is that the image is formed by direct exposure (illumination) of the photosensitive elements of the printer with a laser beam. nine0003

Prints made in this way are resistant to moisture, abrasion and fading. The quality of such an image is the highest.

Watching a video on the topic “The principle of operation of a laser printer”

Students outline the step-by-step principle of work using handout (Appendix 2)

3-D printers

3D printer is a numerically controlled machine that uses the layer-by-layer method of creating a part. 3D printing is a type of additive manufacturing and usually refers to rapid prototyping tools.

3D printing can be done in many ways and using various materials, but any of them is based on the principle of layer-by-layer creation (“growing”) of a solid object.

Watch a video on the topic "The principle of operation of a 3-D printer"

Plotters

Graph plotter (from the Greek γράφω - I write, draw), plotter for automatic drawing with high accuracy, diagramming20 , complex drawings, maps and other graphic information on paper up to A0 or tracing paper.

Task:

Individual work

Self-examination

Teacher's speech:

You have on the tables the material from the methodical instructions for performing the practical task. (Appendix 4) Slide 14

Consolidation of the material

(Practical tasks with report preparation):

Evaluation criteria:

Slide 15

Evaluation criteria:

"5" - completed tasks from 1-7 correctly, excellent aesthetic design

"4" - completed tasks from 1-6, but there is 1 small error;

"3" - completed 4 tasks, and not quite right, there are errors in execution;

"2" - almost nothing could be done. nine0003

5. Homework

Purpose:

Informing students about homework, methods of doing it, checking students' understanding of the content of work and how to do homework. Slide 16:

Prepare reports on the topic "Printers" and print them on printers. nine0003

6. Summing up the lesson (reflection, grading for work in the lesson).

Answer the test questions (slide 17)

Evaluation criteria:

"5" - completed the tasks correctly, excellent aesthetic design of the report;

"4" - completed the tasks, but there is one small error or the report is not formatted correctly; nine0003

"3" - no aesthetic design, there are errors in execution;

"2" - almost nothing could be done.