purple b sketch model review word and...
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Purple B Sketch Model Review
Word and Seek
Adult language learners struggle with conversation
Children language learners struggle with vocabulary acquisition
Critical window age 6 & under Game-based learning most effective
Word and Seek | Language Challenges
Adult language learners struggle with conversation
Children language learners struggle with vocabulary acquisition
Critical window age 6 & under Game-based learning most effective
Word and Seek | Language Challenges
Word and Seek | Storyboard
¡listo, fuera!
lámpara ¡Muy bien!
Word and Seek | Storyboard
silla ¡Muy bien!
Word and Seek | Storyboard
¡Muy bien!Biblioteca
¡tiempo!
Range Tag Requires Power? Tag Cost Reader Cost Ease of use
RFID <20cm No (passive) $0.10 $20-30 Proximity
Bluetooth 50-100m Yes $5.00 $30-50 Identify individual beacons
IR Sensor >10m Yes $0.50-$2.00 <$1.00 Line of sight
QR Code ~40cm No <$0.20 $50-100 Image capture
Manual 0m No Variable Variable Physical contact
Word and Seek | Identification TechnologyRFID was an ideal solution because of low power consumption and low cost.
Range Tag Requires Power? Tag Cost Reader Cost Ease of use
RFID <20cm No (passive) $0.10 $20-30 Proximity
Bluetooth 50-100m Yes $5.00 $30-50 Identify individual beacons
IR Sensor >10m Yes $0.50-$2.00 <$1.00 Line of sight
QR Code ~40cm No <$0.20 $50-100 Image capture
Manual 0m No Variable Variable Physical contact
Word and Seek | Identification Technology
RFID <20cm No (passive) $0.10 $20-30 Proximity
RFID was an ideal solution because of low power consumption and low cost.
Key Questions • What is the right way for the user to interact with objects? • What is the required range?
Word and Seek | Sketch Model Testing
Word and Seek | Sketch Model Testing
User Testing (11 subjects) • Wearable preferred to handheld device • Range of at least 7cm
sources: user study, CDC info
Palm was the preferred location 90th percentile 6 y/o male hand length = 14.5 cm Average palm length:finger length ratio = 0.75 Range ~ 6.2 cm
Word and Seek | Existing Product Space Many language learning games exist, but none of them are very interactive.
FluentU Duolingo Babbel Bravolol Little Pim
Word and Seek | Potential Market
Only 15% of elementary schools offer language learning classes
15%
85%
Word and Seek can fill the gap for children without access to language classes.
Word and Seek
“Tell me, and I’ll forget. Show me, and I may remember. Involve me, and I’ll understand.”
Chinese Proverb
Word and Seek | Backup Slide: Power Consumption