verb open as well as related articles see open disambiguation . opened type private industry e learning open educational resources and educational software founded los gatos california united states august 2012 founders adam blum lisa blum headquarters los gatos california area served united states key people adam blum vladimir tarasov ron drabkin lisa blum website www.opened.com opened is an online catalog of educational assessments homework assignments videos games and lesson plans aligned to every common core standard and several other standards and includes the only open source formative item bank . the site offers the ability for teachers to assign resources to their students online letting students take assessments do homework etc on their own computers or tablets . assignments done online are graded automatically and presented to the teacher in a mastery chart . opened s slogan mentions assessment to instruction meaning formative assessments given on opened can access opened s large catalog on a per student basis to recommend the right resource to each student individually . the company has stated that functionality of searching the site and most of its resources are free and will continue to be free going forward . 1 however the company is also distributing premium content from publishers such as pearson and houghton mifflin harcourt to teachers for 9.95 per month . 2 currently 175 000 teachers or about 6 % of all usa teachers are registered users . recently the company has been providing its resources with alignments to other tech companies . the api for finding standard and skill aligned resources is used by ed tech leaders such as renaissance learning promethean pacific metrics and many more . 3 contents 1 history 2 technology 2.1 opened catalog 2.2 opened search 3 funding 4 management team 5 see also 6 external links 7 references history edit opened was founded in august 2012 with the purpose of providing a catalog of educational resources and aligning them to common core and other standards . the opened cataloging process is not consistent with the current industry standard of crowdsourcing and curating individually rather opened has implemented the use of algorithms for automated alignment of resources combined with professional educator curators to validate those alignments . the process allows for a bigger scale of aligned content . at present moment the site contains over 750 000 resources most of them aligned to the common core . 4 the site also initially launched with the goal of providing materials cataloged to common core and later expanded to include other standards such as next generation science standards . opened is continuing to add other standards such as uk and singapore standards . 5 in may 2015 the company changed its domain name from www.opened.io to www.opened.com . technology edit the opened site consists of several components working together to help teachers find resources for their class and the standards they might be teaching . 6 opened catalog edit the opened catalog is built by deep semantic crawling of internet based educational resources and hosting sites ; it imports extensive metadata on each resource videos games exercises and other content determining their creator subject area duration quality and grade level . the resulting catalog of resources is then aligned to standards probabilistically via machine learning . the results are then curated and validated through professional educators and then posted live on opened . opened search edit the catalog on opened is searchable by keyword and by standard common core math common core language arts next gen science standards california history and new york common core social studies . the search provides multiple asessments homework assignments videos games and exercises for each of the individual standards that opened tracks . users can also search the opened catalog by keyword . funding edit in 2014 the company raised a 2m seed round said to be the largest seed round ever in educational technology . 7 management team edit adam blum ceo ron drabkin vp of marketing vlad tarasov vp of engineering lisa blum vp of business development brandon dorman vp of curriculum see also edit educational software e learning learning management system search engine common core state standards initiative external links edit official opened website official opened blog official opened twitter official opened facebook page opened.com pinterest page references edit opened launches comprehensive catalog of common core content . getting smart . 2013 06 25 . retrieved 2013 06 26 . https www.opened.com search license premium http resources.opened.com press coverage opened launches comprehensive catalog of common core content . getting smart . 2013 06 25 . retrieved 07 09 2013 . check date values in access date help opened update . opened.io . 2013 01 01 . retrieved 2013 06 18 . opened free new resource providing largest catalog of educational content for teachers parents and students . susan heim on parenting . 2013 06 27 . retrieved 07 03 2013 . check date values in access date help https www.edsurge.com n 2014 07 15 opened raises 2m to make smart recommendations for free educational resources retrieved from https en.wikipedia.org w index.php title opened & oldid 682459699 categories educational technology companieseducational softwarelearning management systemslearning support softwarevirtual learning environmentse learninghidden categories cs1 errors datespages using infobox company with unsupported parameters navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 23 september 2015 at 21 30 . text is available under the creative commons attribution sharealike license ; 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