O/L ICT Lesson 13 Practice Tool: Use of Multimedia
This is a practice tool for the Grade 11 use of multimedia unit of the Sri Lankan GCE Ordinary Level ICT syllabus (Competency 13). It covers what multimedia is, the five media elements of text, graphics, audio, video and animation, the difference between analog and digital media and what makes multimedia interactive, the common media file formats including JPG, PNG and GIF for images, MP3 and WAV for audio, MP4 and AVI for video and SVG for vector graphics, the difference between raster graphics made of pixels and vector graphics made from mathematics and how each behaves when resized, image attributes such as resolution and colour depth, how an image file size is worked out from width, height and colour depth, lossy and lossless compression such as JPG versus PNG, and the main multimedia software such as GIMP for images and Audacity for audio, along with animation keyframes and tweening and planning a multimedia project. This is a core unit that appears in both MCQ and Paper II questions.
Eighteen activities are grouped into six modules: matching drills, flip cards for key terms, sorting exercises for media types and software, an ordering task for working out file size, a swipe drill for raster versus vector, and timed quizzes. Your score is kept in your browser, so you can close the page and return to it.
The tool opens in English. Tap the language button to switch the whole tool to Sinhala. Both languages use the same terms as the Lesson 13 notes.
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