pondělí 18. března 2019

HotPot revisited

Some features of Hot Potatoes will appear in all CALL - Computer Assisted Language Leanrning materials. Let's explore them in more detail. Focus on the menu Options - Configure output.

1. Titles + prompts enable the user to improve instructions and add more info.
2. Buttons - a space for creating html links.
3. Appearance - avoid dull grey AND sharp and intensive colours. The colour combination influences the mood and concentration of the learner.
4. Timer :) use it wisely!
5. OTHER - this menu changes for each format, feel free to explore! You can use e.g.
  • limiting
  • shuffling
  • showing lists of possible answers

6. in JQuiz only: File - Add reading text. 

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Task 1
Check the links among your exercises.

Task 2
Focus on feedback in your quiz. A good feedback should
  • present appropriate input - high amount of correct language
  • be positive! do not criticise, rather include hints and ideas (not solutions)
  • bring new information outside language
  • be true
  • prompt and motivate

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Examples of inacceptable feedback:

Sorry, try again
Are you serios?
almost THEREEEEE
you should have studied mnore
No way.
You should think before you click.
This is not the right answer.

Examples of suitable feedback:

Q: What do you use for reading?
A a book
B a toy FDB: We use toys for playing. (IMAGE)
C a table FDB: We eat on a table. (IMAGE)
D a dog FDB: Dog is a friendly animal. (IMAGE)




pondělí 11. března 2019

Working with audio


Audio material is regularly used when teaching speaking and listening in foreign languages. Therefore the teachers and the students should be able to edit and modify audio as well as texts.
Probably the best freeware available for editing sound is called AUDACITY.


Audacity Basics - you should be able to
- install Audacity and the lame library which enables export to mp3
- open a file in Audacity
- edit the file: cut and paste, fade in/out, change speed, delete, add silence
- create a new file
- combine two files (e.g. speech + background music)
- inserting silence (e.g. as a space for an answer)
- changing the speed or pitch (carefully!)



TASK 1 - TEACHER'S JOB
Browse Youtube for videos suitable for the topic you chose for HotPot tasks.
View, listen and choose; consider the target level and age!
Convert the video to mp3 using an online convertor.
Cut out a part of the recording, and publish in your HotPotaoes index webpage (see the related blog entry for details).

You can use Free YouTube to MP3 Converter to get audio from youtube easily, or find free online converters. Be careful what you click on, this type of software often brings unwanted installations or even viruses!

TASK 2 - AN EXAMPLE OF A STUDENT TASK
You have just become a radio reporter!
Work in pairs. Choose an actual event from your real life, and prepare a 2minute talk on it.
Present main facts and your opinions.
Options: either pre-preapre the text, and record, or present the event in the form of live-talk, or an interview between you two.
Edit the recording in Audacity. Record and add appropriate sounde effects if necessary.
Finalise the file, export it and save as mp3, and add to your personal webpage.

TASK 3 - EXAMPLES OF GOOD TEACHING PRACTICE
What does the word "podcast" mean? Go to Podomatic, create an account and browse the site. How can we use it in teaching English?

Good examples - Teacher LukeSplendid Speaking for advances learners
Podcast on podcasting in ELT

More online podcasts and streams
Ted Talks on Education - free online lectures!
Paramind
Oxford University Podcasts

Free text to audio:
http://www.fromtexttospeech.com/


Sound files extensions:
wav -  Standard audio file container format used mainly in Windows PCs. Commonly used for storing uncompressed (PCM), CD-quality sound files, which means that they can be large in size—around 10 MB per minute. Wave files can also contain data encoded with a variety of (lossy) codecs to reduce the file size (for example the GSM or MP3 formats). Wav files use a RIFF structure

mp3 - compressed, MPEG Layer III Audio. Is the most common sound file format used today

flac - Free Lossless Audio Codec
ape - Monkey's Audio lossless audio compression format
ogg - A free, open source container format supporting a variety of formats, the most popular of which is the audio format Vorbis; compression similar to MP3

webm - Royalty-free format created for HTML5 video
aiff - Standard audio file format used by Apple. It could be considered the Apple equivalent of wav

ref: https://en.wikipedia.org/wiki/Audio_file_format



Sluchové pole (nebo oblast slyšitelnosti) je rozsah všech zvuků, které dokáže lidské ucho vnímat. Vnímání zvuku je u člověka omezeno slyšitelnými frekvencemi (přibližně 16–20 000 Hz). U každé frekvence je odlišný rozdíl intenzit, jež slyšíme. Lidský sluchový orgán je nejcitlivější v oblasti frekvencí 1–5 kHz.

http://www.wikiskripta.eu/index.php/Pr%C3%A1h_sluchu_a_sluchov%C3%A9_pole


úterý 5. března 2019

Working with images


HOMEWORK

1. Take some pictures at the university premises (respect GDPR!). 

2. Make a collage of two chosen photos form your set of pictures - as if creating a hoax image. Insert the final photo with a suitable comment into your Homepage (index.html) and publish online. 
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Visual support is vital in any teaching situation. As English teachers, we use pictures of objects to teach vocabulary, photos of situations to stimulate communication, authentic visual materials to teach realia and culture...

What characteristics of an image influence its effect on remembering the vocabulary?
  • context or the absence of context
  • vivid colours
  • contrast
  • golden ratio
  • the size of the target object
________________________________________________

Making a hoax in Photoshop:
1. ^A^C^V inserting img2 into img1
2. ^T for transformation - shift, rotate... place img2
3. Mask  - cover all (a black mask)
4. B - brush - paint into the mask (white brush) and uncover img2
5. X - switches between black and white brush (undo)
experiment with the brush settings (krytí, hustota)

inspiration Martin Stranka
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 WHAT ARE THE KEY SKILLS IN THE FIELD OF PHOTOGRAPHY FOR  THE ENGLISH TEACHER TO MASTER?

My suggestion:
1. Basic knowledge of the electronic image formats and their specifics.
2. Basic editing abilities: crop, contrast, colour adjustment
3. Basic photo-making skills and knowledge (to be able to prepare original materials, and to document school events, projects, students'activities and products).

4. Advanced editing abilities - collage (to create more original materials, and to be resistant to hoax), inserting text to the image...

Typical Viral :D

Any other suggestions?
____________________________________________________

What shall we know?

1. How to compose a photography

Practical tips:
concentrate on a single idea, object, feeling
get closer, fill almost the whole field with the target object/situation


2. How to save an image
raw - full data
jpg - compressed (lossy)
tiff - for print, usually lossless; can handle CMYK
bmp - full data (bitmap)
gif - small (and animated); saves only used colours; 8bit
png - lossless, successor of gif, 8-24-48 bit

For web, an image with the longer side of 1600px is big enough, Let's say the size limit is cca 50KB - to save space.
When reducing the size, always keep the original untouched! Save the small version as a new file, say, IMG2345_Small.jpg. 
JPEGS reduce the size exponetially, so if you reduce the original at 80%, the amount of data may be reduced form 12MB to 1,5 MB. 


More in Wiki (in Czech)
and Wiki (in English)


3. The basic editing skills you should master:
1. Compressing, saving in various formats (with different extensions) and size
2. Crop (ořez)
3. Changing brightness, sharpness, hue and other basic features
4. Making a part of the image transparent

Collage in Photoshop - tutorial in Czech
List of  Photoshop Hotkeys - EN
List of  Photoshop Hotkeys - CZ

Useful Photoshop Hotkeys
B - Brush
C - Crop
H - Hand
J - Healing brush
L - Lasso
S - Stamp
W - Wand

TIPS
How to make things transparent in Photoshop:
New Image - Background transparent
Import the image into a new layer
Magic wand - choose parts which should be transparent

Layer - Mask - Hide the choice (Vrstvy - maska - skrýt výběr)

How to make things transparent in GIMP:
Layers – Transparency – Add alpha channel
Choose the background using the magic wand.
The simplest method is to use Edit → Clear

You can also test transparency in Word - add the image into text and choose Formát obrázku - pozice - před textem.


Want a top quality image legally?
Visit Getty.
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... want to know more?

"Kreativní fotografie si neklade za cíl zobrazit realitu (takové to tam Mařenko bylo) ale zobrazit 
něco víc. Zobrazit emoce (pocity, nálady ...), které autor na místě cítil a chce vám předat.
Když se díváte na fotografie z vaší dovolené obvykle si vybavíte pocity, jaké to tam bylo (jé podívej - tady jsme byli ...). Díváte-li se ale na fotografie z cizí dovolené, vidíte jenom obyčejné pláže, hrady, zámky atp. Prostě emoce spojené s místem a zážitkem vám chybí a proto vám často tyto fotografie připadají obyčejné. Dobrá fotografie vám dokáže předat pocity a zážitky i z míst, kde jste nebyli. A o tom to je...
Když stojíte v lese, vidíte široko okolo sebe, vnímáte vítr, šumění lesa, vůni jehličí a do zad vás pálí slunce. Toto vše na fotografii však chybí. Je tam jen obrazový výsek a to ještě ve 2 rozměrech (3 rozměr prostoru / perspektivy chybí). A proto je to tak těžké. A proto je pokoušet se o to taky tak krásné!"

http://fotoroman.cz/




What's wrong with this photo?