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The selection process explains how base words were extracted from educational sources, including the Marzano et al. (1991) school-word list and standardized-test word sets, then filtered to a manageable corpus. DataWorks further merges high-frequency lists (e.g., Fry and Dolch) and assigns each word an appropriate grade using the earliest observed occurrence.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/the-dataworks-list-of-words-that-all-k-6th-grade-students-must-know/411552/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/the-dataworks-list-of-words-that-all-k-6th-grade-students-must-know/411552.png","ImageObject",300,407,{"name":92,"@type":93},"Stanley","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-05","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":52},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How were the words originally selected for the list?","Question",{"text":112,"@type":113},"Words were selected by identifying base words—words from which other forms are derived—using sources such as actual textbooks and literature, along with standardized tests.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What role did the Marzano (1991) work play?",{"text":117,"@type":113},"Marzano’s lists provided a large set of school and standardized-test words, which were then edited to keep base words only and reduced to a workable number for K-6.",{"name":119,"@type":110,"acceptedAnswer":120},"How does DataWorks determine the grade level for each word?",{"text":121,"@type":113},"For each word, DataWorks assigns the earliest grade in which the word appears, whether in student books or on standardized tests.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},411552,1790986546,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":52,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},2336477405376,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","The DataWorks List of Words That All K-6th Grade Students Must Know  \nData Works has worked with many schools that have expressed interest in obtaining a scientifically-derived list of grade-level appropriate words for students to learn that could specifically improve student achievement. Attached is just such a list!  \nHow and Why These Words Were Selected  \nFor years, educators have been interested in coming up with a list of words children should know. There have been various estimates of the size of vocabulary acquired by an average adult. However, if this vocabulary is to be taught in 12 years of schooling, the number of words needing to be taught per week is excessive. For example, 80,000 words learned over 12 years of schooling would be 186 words per week.  \nOne approach to reduce the number of words is to select base words only. Base words are words from which other words are derived. For example, from the word \"farm,\" derived words would be farmer, farms, farming, etc. If the base word is understood, students would know the derived words from knowledge of prefixes, suffixes, verb tenses, etc.  \nStarting in the 1930's, various researchers have tried to come up with base word lists. Oneof the most recent attempts was done by Marzanno et al in 1991 with funding from the Department of Education.  \nMarzanno's list is described as a list of \"school\" words since the words were specifically taken from actual textbooks and literature books school children commonly read. In addition, he compiled a second set of 17,000 words taken directly from common standardized tests.  \nMarzanno's combined list of book words and standardized test words came to 30,371 words. These words were then edited to select base words only and ended up as a manageable list of 6,768 words for K to 6th graders. These words were then matched back into the student textbooks and literature books to see in what grade students are exposed to each word in the list. In addition, each word was checked again against common standardized tests to determine in what grade students would come across each word in a standardized test.  \nDataWorks has taken the Marzanno list and merged in other common and high frequency word lists from other sources such as Fry and Dolch to come up with a master list of words all students should know.  \nDataWorks also determined an appropriate grade level for each word. The grade level was derived by choosing the earlier grade in which each word occurs whether in books or on standardized tests.  \nIf students were to know these words at the proper grade level, they should have no trouble reading grade-appropriate literature books and textbooks and should also be able to do well on standardized tests.  \nDataWorks Educational Research (559) 834-2449 Page 1  \nJuly 20, 2012 12:03 PM  \nMacintosh HD:Users:linda_warning:Downloads:DataWORKS_K-6_VocabularyList (combination marzano fry dolch).doc  \nThe DataWorks List of Words That All K-6th Grade Students Must Know  \nKindergarten  \na, after, again, ago, air, airplane, all, already, always, am, an, and, apartment, apply, are, as, ask, at, ate, attack, aunt, away, baby, back, ball, bandit, baseball, basket, bay, be, because, before, believe, bell, best, better, big, bill, bird, blanket, blue, boat, body, book, boot, both, bowl, box, boy, bright, brood, brook, broom, brother, brown, bus, but, buy, by, calf, call, came, camp, can, candle, car, card, cart, cast, cat, catch, chain, chair, cheek, cheese, chicken, child, chime, chip, choice, circle, class, cloth, cloud, clown, coat, cold, come, cookie, cork, corner, could, cow, crane, cricket, cry, cut, dark, day, did, dine, dish, do, dock, doctor, dog, doll, door, down, draw, duck, duke, dust, each, ear, eat, egg, else, end, even, eye, face, fall, fan, farm, fast, fat, father, feed, fight, fire, first, fish, five, floor, fly, food, foot, for, forest, fowl, friend, from, front, fruit, full, fun, funny, game, gay, get, girl, give, glad, glass, glen, go, goat,","cbCaihyuKUqyINRF","https://ap.wps.com/l/cbCaihyuKUqyINRF","pdf",175688,14,"English","# How and Why These Words Were Selected\n## Base words and word derivations\n## Source lists and word selection process\n# DataWorks Master List and Grade Placement\n## Merging additional high-frequency word lists\n## Determining the appropriate grade level","[{\"question\":\"How were the words originally selected for the list?\",\"answer\":\"Words were selected by identifying base words—words from which other forms are derived—using sources such as actual textbooks and literature, along with standardized tests.\"},{\"question\":\"What role did the Marzano (1991) work play?\",\"answer\":\"Marzano’s lists provided a large set of school and standardized-test words, which were then edited to keep base words only and reduced to a workable number for K-6.\"},{\"question\":\"How does DataWorks determine the grade level for each word?\",\"answer\":\"For each word, DataWorks assigns the earliest grade in which the word appears, whether in student books or on standardized tests.\"}]","The DataWorks List of Words That All K-6th Grade Students Must Know | PDF",1790588891,35]