Little Linguist Tamecia Jones Ed 147

Topic Definition Bilingual Education… Object-labeling for vocabulary-building Users will be primary elementary students that are second language learners Goal: Image recognition and speech/voice interfaces in a handheld

Key Interface Guideposts Key Design QuestionAnswerConstraint/Affordance Who will use the system?Kindergarten and First Grade students learning English as their second language Size to fit user size, direct manipulation For what purposes?To identify objects beyond those primarily focused on in the classroom Graphics and color (supports recognition over recall) In what environments?At home and outside of school, but can be supplemental support in classroom User controlled audio On what occasions?Anytime, in play, travel, etcDurability, light, small Comprehension issues and actions they face Reading, menu hierarchy challengesAvoid scrolling and indexes, simple modes and single- function buttons Backgrounds of knowledge, understanding, and skill they bring to help use Some users might be familiar with handheld games and educational software Use similar buttons to other devices (radios, tv, vcr, Playstation) Backgrounds of knowledge, understanding, and skill they bring to hinder use Lack of prior computer use, ReadingBuild in auditory help and direction options; undo function

Similar Products Similar objectDescriptionLikesDislikes Enchanted Learners English-Spanish Picture Dictionary arning.com/languages/Sp anishdictionary.html arning.com/languages/Sp anishdictionary.html Organizes alphabetical index of pictures with Spanish and English words accompanying each one. Large library of material Simple Promotes recognition over recall Organization of images in pages No allowance for additions Must be connected through the internet Computer required DynEd International Language Learner software used on a computer with a mouse Keyboard not requiredNot handheld and portable No allowance for additions Leapster Multimedia Learning System Multimedia learning system that uses cartridge games Keyboard not required Navigational buttons for screens and magic pen Handheld shape Shape Handheld Leappad Learning System Learning System with console that uses books and cartridges and a magic pen to transforms pictures and words into sounds User-controlled Dynamic in lesson material Keyboard not required Uses paper as the basic medium

Design Alternatives

Challenges A multimodal device provides a challenge to keep menus simple and single-function buttons (Dual function buttons challenge young users, but how many buttons can they remember…7+/-2 rule?) Choice of the navigational buttons (round mouse ball vs. Plus-shaped button) Separation of mode, command, and function buttons Placement of volume and shutter buttons Size: screen, buttons, images

Prototype-Little Linguist Handheld Embedded digital camera Interaction is based on a conversational metaphor and direct navigation through buttons or touch screen (next generation)

Strengths and Weaknesses Animal shape helps users identify location of functions by natural mapping of functions to body parts (eyes=viewfinder, ears=speakers, mouth=screen) Large buttons Most buttons map to the same function as other common devices (play, stop, etc.) There are many buttons to remember This device must have high-quality voice user interface because it is language-oriented Unless users go through a series of questions relating to their function wishes, menus may not be avoidable if screen buttons are not the option we want to take

User Evaluation Observation Users map to functionality quickly Users identify function and mode buttons quickly Navigational buttons and function buttons were sometimes confused in performing tasks Placement of the shutter button is not naturally mapped Users were able to remember buttons and matching functions Some users reverse the prototype when simulating taking the pictures Scripting in conversation is very important Sounds may or may not be bonus

Next Steps Move camera shutter button to placement accessible to right index finger High fidelity prototype with auditory function Test the navigational button choice again Add obvious camera lens by way of a nonprotruding “nose”

Little Linguist II… coming soon