Brandt Redd of the Bill & Melinda Gates Foundation discussed the Learning Resource Metadata Initiative (LRMI) and how it realtes to other major education projects including the Shared Learning Collaborative, Learning Registry, etc.
I come from a family of engineers.That son I was talking about is a Mechanical Engineer working on PhDAs a computer scientist I barely qualifyWhen we talk about feedback loops, we can’t avoid getting into control theory.Open loopRequires a precise system to get predictable output.If the system breaks down and output goes haywire, input unchangedClosed feedback loopController adjusts the input to get predictable output
Feedback in education is pretty much the sameStudent is not a precise systemAnd we like it that way.Foolish to standardize the activities because variation among students is guaranteed to produce a wide variety of results.Son’s exampleOne exam in all of high schoolMeasure of mathematical competency reduced to a single integer between 1 and 100InfrequentSlowWeak
Nearly any content could be a learning resource. So, LRMI addresses those properties that distinguish the use of
LRMI in Context, Brandt Redd
Everything You Need to Know about LRMI LRMI In Context Brandt Redd – Bill & Melinda Gates FoundationCC-BY 3.0 1
Control Theory SensorFeedback Reference Controller Input System Output
Pedagogical Theory AssessmentFeedback Standards Teacher Activities Student Skills Feedback must be: • Frequent • Fast • Rich
The PersonalizedLearning Model “What don’t I know?” CEDS SIF Learning Feedback PESC Loop Student Data LRMI Alignment LR Learning Objectives CCSS “How did I “How do I do?” learn this?” Assessment Content QTI, APIP W3C, IMS 4
Four-Layer Framework for Data Standards CEDS 2.0 Data Definition of data elements Depth of Systems Integration including name and Ease of Data Exchange and Dictionary interpretation.Broader Applicability and Longevity of Standards Data Logical definition of entities as groups of elements and Model inter-entity relationships. Concrete digital format for Serialization storage or transmission of entities. Transport layer and message Protocol formats for exchanging serialized entities.
Schema.org• Jointly Developed by Bing! Google and Yahoo• Specifies metadata schemas for common internet items. – E.g. Article, Blog, MusicRecording, Photograph, Recipe, SoftwareApplication, WebPage• Invited industry consortia to submit additions.CC-BY 3.0 6
LRMI / LR Mesh Vocabulary Schema.org LRMI Other Purpose Search Engine Discovery Data Exchange Encoding HTML Any, incl. LRMI Microdata Distribution Web Crawling Peer Replication Schema.org Learning RegistryAlthough LRMI is being developed in the Schema.org context, its vocabulary is alsoappropriate for the Learning Registry. CC-BY 3.0 12
Shared Learning Collaborative An alliance of states, foundations, educators, content providers, developers and vendors who are passionate about using technology to improve education. Student Data Services Content Services Application Layer Security & Metadata API Student Data API Permissions LR Index Student Data Store Standards Content Ingestion Services Data Data Other LR SLDS LLDS Learning Registry InstancesCC-BY 3.0 13
Resources• http://schema.org – Schema.org• http://lrmi.net – Learning Resource Metadata Initiative• http://corestandards.org – Common Core State Standards• http://learningregistry.org – Learning Registry• https://ceds.ed.gov/ - Common Education Data Standards• http://slcedu.org – Shared Learning Collaborative• http://ofthat.com – Brandt’s BlogCC-BY 3.0 14