Lesson Plan

advertisement
Lesson Plan
Course Title: Principles of Information Technology
Session Title: Introduction to Scanners
Lesson Duration: 60 Minutes
Performance Objective:
Upon completion of this assignment, the student will be able to discuss the different types of
scanners and be able to scan an image into a graphics program. Students will also be able to
demonstrate post-scanning editing techniques.
Specific Objectives:
• Students will know terminology related to scanners.
• Students will understand what a scanner is.
• Students will be able to scan an image into a graphics program.
• Students will understand the different file types.
• Students will know post-scanning editing techniques.
Preparation
TEKS Correlations: 130.272(c)(4)
This lesson, as published, correlates to the following TEKS. Any changes/alterations to the
activities may result in the elimination of one or more of the TEKS listed.

(B)
Identify major hardware components and their functions such as the central processor unit,
input and output peripherals, and storage systems and devices;

(C)
Use available reference tools such as user manuals, both online and written, as appropriate;

(D)
Demonstrate understanding of the process of connecting peripheral devices; and

(E)
Demonstrate proficiency in the use of a variety of input devices such as mouse, keyboard,
microphone, digital camera, printer, scanner, and optical disk reader.
Instructor/Trainer
References:
www.foldoc.org – Online Dictionary of Computing
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
1
Instructional Aids:
• Introduction to the Scanner Word Search
• Introduction to the Scanner Worksheet
• Presentation on Introduction to the Scanner
• Scanning Activity
Materials Needed:
• Photographs to scan
• Copies of the Introduction to the Scanner Worksheet, Scanner Word Search, &
Scanning Activity
Equipment Needed:
• Computer equipped with scanning software
• Scanner
• Projector
Learner:
Students should bring a photo from home to scan. The instructor should give the students the
Word Search the day before the presentation so they have exposure to the terminology and will
recognize them during the presentation.
Introduction
MI
Introduction (LSI Quadrant I):
SAY, “Most of you are more familiar with uploading digital pictures straight from your
camera or phone, right? Well, what about photographs that are not digital?”
ASK, “How do you think you would go about getting a paper photograph onto your
computer?”
ASK, “How many of you have ever used a scanner to scan a photograph?”
SHOW Introduction to the Scanner Presentation
Outline
MI
Outline (LSI Quadrant II): Instructors can use the
Scanner Word Search, Scanner Worksheet,
Scanner Presentation, and Scanner Activity with this
lesson.
I. Distribute the Introduction to the Scanner Word
Search to students so they recognize terms
related to photo scanning.
II. Give the students the Introduction to the Scanner
Worksheet to compete during the presentation.
Instructor Notes:
I. Give the word search to
the students the day before
the presentation for
homework.
II. Distribute the Introduction
to the Scanner Worksheet
prior to the presentation.
Students should complete
the worksheet during the
presentation.
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
2
III.
Show the presentation on scanners
A. Types of scanners
B. Connecting your scanner
C. Scanning software
D. Scanning a photo
i. Illustrate the scanning process
ii. Show video on slide 15
E. Scanning formats
F. After scanning
IV.
Distribute the Scanning Activity handout
A. Students should properly place their
image on the scanning bed.
B. Students should use a TWAIN
compliant graphics application to
scan their image directly into the
image editor OR use the scanner
software to scan the image and open
the scanned image in the graphics
editor.
C. Students should then crop out just a
portion of the image they scanned
and adjust the brightness and
contrast of the image.
V.
Summary/Review
III. The instructor should
know how to use the scanner
and which scanning software
is available in their lab. The
instructor should also know
which image editing software
is available.
IV. Be prepared to assist
students with the scanning of
their photos and saving them
to an appropriate location.
The summary may be
completed after the students
have completed the handson scanning activity.
Summary Questions:
1.
What file type did you save your image in?
2.
Why did you select that particular file type?
3.
Is the software you used a TWAIN compliant
application?
4.
How do you start the scanning process?
5.
What are you doing when you crop an
image?
6.
What are three ways to change the
characteristics or quality of a scanned
image?
After the worksheet has been
returned, the instructor
should go through the
worksheet with the class to
review the information
presented and to ensure all
students have the
information.
The instructor may also choose to go through the
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
3
Scanner Worksheet with the entire class after
grading.
Application
MI
Guided Practice (LSI Quadrant III):
Prior to starting the Scanning Activity, the teacher should demonstrate how the
scanning process works. The instructor should also specify where the scanned
image should be saved.
MI
Independent Practice (LSI Quadrant III):
Students should complete the Scanning Activity and answer the questions on the
activity.
Summary
MI
Review (LSI Quadrants I and IV):
ASK, “On the basis of what you have learned in this lesson, what purposes can you
think of that you would need to use a scanner?”
ASK, “Why would one choose to save a scanned image for a website as a .jpg
rather than a .tif”?
Evaluation
MI
Informal Assessment (LSI Quadrant III):
•
MI
Teacher will observe students during guided practice to evaluate students
understanding of concepts and techniques. Revision/re-teach will occur as
needed before moving to the Independent Practice portion of the lesson.
• Teacher will assist students as they scan their images and save them to their
computer.
Formal Assessment (LSI Quadrant III, IV):
• Determine if students successfully scanned their two images and saved them to
the specified location.
•
Grade the worksheet and scanning activity form submitted by the students.
Extension
MI
Extension/Enrichment (LSI Quadrant IV):
Students will apply scanning techniques in future projects.
Students should scan images to be used on websites or other types of
presentations.
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
4
Icon
MI
Verbal/
Linguistic
Logical/
Mathematical
Visual/Spatial
Musical/
Rhythmic
Bodily/
Kinesthetic
Intrapersonal
Interpersonal
Naturalist
Existentialist
Teaching Strategies
Personal Development
Strategies
Lecture, discussion, journal
writing, cooperative learning,
word origins
Reading, highlighting, outlining,
teaching others, reciting information
Problem solving, number
games, critical thinking,
classifying and organizing,
Socratic questioning
Mind-mapping, reflective
time, graphic organizers,
color-coding systems,
drawings, designs, video,
DVD, charts, maps
Use music, compose songs
or raps, use musical
language or metaphors
Organizing material logically, explaining
things sequentially, finding patterns,
developing systems, outlining, charting,
graphing, analyzing information
Developing graphic organizers, mindmapping, charting, graphing, organizing
with color, mental imagery (drawing in
the mind’s eye)
Use manipulatives, hand
signals, pantomime, real life
situations, puzzles and board
games, activities, roleplaying, action problems
Reflective teaching,
interviews, reflective listening,
KWL charts
Cooperative learning, roleplaying, group brainstorming,
cross-cultural interactions
Natural objects as
manipulatives and as
background for learning
Socratic questions, real life
situations, global
problems/questions
Creating rhythms out of words, creating
rhythms with instruments, playing an
instrument, putting words to existing
songs
Moving while learning, pacing while
reciting, acting out scripts of material,
designing games, moving fingers under
words while reading
Reflecting on personal meaning of
information, studying in quiet settings,
imagining experiments, visualizing
information, journaling
Studying in a group, discussing
information, using flash cards with
other, teaching others
Connecting with nature, forming study
groups with like-minded people
Considering personal relationship to
larger context
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
5
Name ______________________________________________ Date _____________
Introduction to the Scanner – Word Search
Locate each of the words in the word search below. You should become familiar with
each of the terms. The words can go forward, backward, up, down, or diagonal.
During the Introduction to the Scanner lesson, pay attention to learn the meaning of
each of these words.
•
•
•
•
•
•
•
•
•
•
scanner
flatbed
handheld
drum
twain
usb
gimp
crop
brightness
contrast
A
N
M
R
V
P
S
P
U
F
Q
M
M
Q
A
H
A
N
D
H
E
L
D
Y
Z
B
G
H
L
E
C
W
T
E
F
H
P
V
A
C
R
V
O
R
N
S
L
G
H
A
A
M
Q
O
Y
I
D
I
O
Z
C
H
U
I
U
A
K
S
W
D
G
E
O
A
F
A
F
V
F
I
C
R
T
R
Z
H
B
G
E
F
N
P
G
H
E
O
W
U
V
C
T
T
G
L
D
N
P
F
M
K
N
M
I
Y
E
N
A
E
P
E
E
L
U
A
Q
T
T
C
T
K
E
L
D
B
Q
R
K
U
Q
X
R
R
W
U
V
S
F
O
Z
E
Z
C
T
S
H
A
Q
F
A
P
S
P
P
K
V
E
O
G
A
B
S
Q
W
F
I
L
M
I
I
M
B
T
F
A
M
T
Z
V
D
A
N
I
B
C
D
V
J
V
A
A
K
K
V
Q
B
B
G
R
R
A
C
R
O
P
W
F
K
G
R
L
B
W
L
O
Y
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
6
Name _______________KEY_________________________ Date _____________
Introduction to the Scanner – Word Search – KEY
Locate each of the words in the word search below. You should become familiar with
each of the terms. The words can go forward, backward, up, down, or diagonal.
During the Introduction to the Scanner lesson, pay attention to learn the meaning of
each of these words.
•
•
•
•
•
•
•
•
•
•
scanner
flatbed
handheld
drum
twain
usb
gimp
crop
brightness
contrast
A
N
M
R
V
P
S
P
U
F
Q
M
M
Q
A
H
A
N
D
H
E
L
D
Y
Z
B
G
H
L
E
C
W
T
E
F
H
P
V
A
C
R
V
O
R
N
S
L
G
H
A
A
M
Q
O
Y
I
D
I
O
Z
C
H
U
I
U
A
K
S
W
D
G
E
O
A
F
A
F
V
F
I
C
R
T
R
Z
H
B
G
E
F
N
P
G
H
E
O
W
U
V
C
T
T
G
L
D
N
P
F
M
K
N
M
I
Y
E
N
A
E
P
E
E
L
U
A
Q
T
T
C
T
K
E
L
D
B
Q
R
K
U
Q
X
R
R
W
U
V
S
F
O
Z
E
Z
C
T
S
H
A
Q
F
A
P
S
P
P
K
V
E
O
G
A
B
S
Q
W
F
I
L
M
I
I
M
B
T
F
A
M
T
Z
V
D
A
N
I
B
C
D
V
J
V
A
A
K
K
V
Q
B
B
G
R
R
A
C
R
O
P
W
F
K
G
R
L
B
W
L
O
Y
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
7
Name ______________________________________________ Date _____________
Introduction to the Scanner – Worksheet
1. What is a scanner?
2. When would each of the following types of scanners be used?
a. Flatbed Scanner –
b. Sheet-Fed Scanner –
c. Handheld Scanner –
d. Drum Scanner –
3. Most scanners connect to the computer through the _____________.
4. What program is used by the computer to communicate and operate the
scanner?
5. What are the benefits of using a TWAIN compliant image editing application?
6. Scanned photographs can be saved as what file type(s)?
7. Scanned documents can be saved as what file type(s)?
8. Trimming an image, or cutting part of it away, is called what?
9. Also knows as tone or value, the ____________ refers to the lightness and
darkness of an image.
10. What image property refers to the differences in its visual properties?
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
8
Name _______________KEY_________________________ Date _____________
Introduction to the Scanner – Worksheet KEY
1. What is a scanner?
A scanner is a device used to analyze an image and process it.
2. When would each of the following types of scanners be used?
a. Flatbed Scanner – For personal use of scanning documents and
photos.
b. Sheet-Fed Scanner – Can be portable and used for scanning only
paper documents and photos.
c. Handheld Scanner – Extremely portable and used to just quickly scan
paper documents and photos.
d. Drum Scanner – Large scanner used to take high-quality scans of
documents or photos.
3. Most scanners connect to the computer through the _____________.
USB
4. What program is used by the computer to communicate and operate the
scanner?
TWAIN
5. What are the benefits of using a TWAIN compliant image editing application?
The image can be scanned directly into the program from the scanner.
6. Scanned photographs can be saved as what file type(s)?
jpg, bmp, tif, png
7. Scanned documents can be saved as what file type(s)?
jpg, bmp, tif, png, pdf
8. Trimming an image, or cutting part of it away, is called what?
cropping
9. Also knows as tone or value, the ____________ refers to the lightness and
darkness of an image.
brightness
10. What image property refers to the differences in its visual properties?
contrast
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
9
Name ______________________________________________ Date _____________
Introduction to the Scanner – Scanning a Photo
Before you begin this activity, you should have a photo that you either brought from home or
one that your instructor provided to you. You should also know where your scanned images
should be saved.
1. On the scanner bed, locate the marker indicating where the top of the photo or document
should go.
2. Place your photo face down on the scanner bed with the top corner near the marker.
3. If you are not scanning your photo directly into your graphics application, make sure you
specify that you are scanning a photo or picture, not a document.
4. You will make two scans of your photo.
a. The first save as scan1.jpg
b. The second save as scan2.tif
5. After both images have been scanned, locate them on your computer.
6. Right click on each image and select Properties.
7. Look the window that comes up and locate the files’ sizes. Write the file size for each image
in the space below:
scan1.jpg __________________
scan2.tif ___________________
8. Which image is largest?
9. If you were going to use one of the scanned images on a web page, which would you select
and why?
10. If you were going to use one of the scanned images for a brochure, which would you select
and why?
IT: Principles of Information Technology: Introduction to the Scanner
Copyright © Texas Education Agency, 2013. All rights reserved.
10
Download