{"id":1372,"date":"2026-04-08T10:00:00","date_gmt":"2026-04-08T14:00:00","guid":{"rendered":"https:\/\/sites.miamioh.edu\/dragonfly\/?p=1372"},"modified":"2026-04-08T11:00:16","modified_gmt":"2026-04-08T15:00:16","slug":"dem-bones-how-many-bones-are-in-your-hand","status":"publish","type":"post","link":"https:\/\/sites.miamioh.edu\/dragonfly\/2026\/04\/dem-bones-how-many-bones-are-in-your-hand\/","title":{"rendered":"Dem Bones: How Many Bones Are in Your Hand?"},"content":{"rendered":"\n

By the Third-Grade Class of Thela King, Morton Elementary School, Lexington, Nebraska<\/p>\n\n\n\n

Editor\u2019s Note: This inquiry is a gem from our Dragonfly Magazine archives, originally published in the late 1990s. It captures the curiosity of a third-grade classroom as they poked, prodded, and peered into the anatomy of the human hand.<\/p>\n\n\n\n

\"Black
Black and white handprint.<\/figcaption><\/figure>\n\n\n\n

The Spark<\/strong><\/h2>\n\n\n\n

We started by looking at our own hands. We flexed our fingers, pressed on our palms, and felt for the hard structures beneath our skin. It seems like a simple question: How many bones do you think are in your hand? But as we started counting the bumps and joints, we realized it was much trickier than it looked.<\/p>\n\n\n\n

The Prediction<\/strong><\/h2>\n\n\n\n

After studying our hands and feeling the bones, each of us made a prediction. Our guesses were all over the place!<\/p>\n\n\n\n

    \n
  • Some of us thought there were as few as 5 bones.<\/li>\n\n\n\n
  • Others thought there might be as many as 60.<\/li>\n\n\n\n
  • One classmate, Devin Dennis, even thought there might be almost 100!<\/li>\n\n\n\n
  • Most of us predicted around 24.<\/li>\n<\/ul>\n\n\n\n
    \"A
    The class guesses how many bones are in the human hand.<\/figcaption><\/figure>\n\n\n\n

    How We Investigated<\/strong><\/h2>\n\n\n\n

    To find the real answer, we set up three different “Counting Centers” in our classroom to see which method worked best:<\/p>\n\n\n\n

      \n
    • Center One:<\/strong> We used a classic anatomical diagram of the hand from the famous book Gray\u2019s Anatomy<\/em>.<\/li>\n\n\n\n
    • Center Two:<\/strong> We looked at a real X-ray of our teacher\u2019s hand!<\/li>\n\n\n\n
    • Center Three:<\/strong> We used a three-dimensional model of a human skeleton.<\/li>\n<\/ul>\n\n\n\n
      \"A
      Our teacher’s X-ray helped us see through the skin, though some small bones were still hard to spot.<\/em><\/figcaption><\/figure>\n\n\n\n

      What We Found<\/strong><\/h2>\n\n\n\n

      Each center gave us a different experience. We discovered that Center One (the book diagram) was difficult because some bones were hidden behind others. At Center Two, the X-ray was “the most fun” according to our classmate Ilse, but the smallest bones were still hard to see clearly.<\/p>\n\n\n\n

      Center Three<\/strong> was the winner! Because we could see the 3D model from all sides, we could make the most accurate count. Every student who visited the 3D model counted 26 bones.<\/p>\n\n\n\n

      “The funnest thing about counting bones is learning about a skeleton.” \u2014 Michael Hansen<\/p>\n\n\n\n

      The Big Reveal:<\/strong> While we consistently counted 26, there are actually 27 bones in the human hand! It just goes to show how easy it is for one small bone to stay hidden\u2026<\/p>\n\n\n\n

      \n\n\n\n

      Go Wild: Your Turn!<\/strong><\/h2>\n\n\n\n

      Can you find all 27? Try to replicate our study! Feel your own hand first and write down your guess. Then, find a high-quality anatomical diagram or a skeleton model.<\/p>\n\n\n\n

        \n
      • The Challenge:<\/strong> Can you identify the 8 tiny bones in the wrist (the carpals)?<\/li>\n\n\n\n
      • Dig Deeper:<\/strong> Does a baby\u2019s hand have the same number of bones as yours? Does your foot have the same number of bones as your hand?<\/li>\n<\/ul>\n\n\n\n
        \n\n\n\n

        The Field Guide (For Educators)<\/strong><\/h3>\n\n\n\n

        Subject\/Grade Level:<\/strong> Biology \/ Anatomy; 3rd\u20135th Grade<\/p>\n\n\n\n

        Inquiry Focus:<\/strong> Data Collection, Observation Accuracy, and Comparative Anatomy.<\/p>\n\n\n\n

        The Science Behind It:<\/strong> The human hand is composed of 27 distinct bones: 14 phalanges (fingers), 5 metacarpals (palm), and 8 carpals (wrist). Counting them via X-ray or diagram is challenging due to the “stacking” of carpal bones, which often overlap in 2D images.<\/p>\n\n\n\n

        Standards Connection:<\/strong> <\/p>\n\n\n\n

          \n
        • NGSS LS1.A:<\/strong> Structure and Function \u2013 Multicellular organisms have specialized structures that help them perform specific functions.<\/li>\n\n\n\n
        • Mathematics\/Data:<\/strong> Representing data through predictions and bar graphs.<\/li>\n<\/ul>\n\n\n\n

          Materials Needed:<\/strong> <\/p>\n\n\n\n

            \n
          • Anatomical diagrams (e.g., Gray’s Anatomy<\/em>)<\/li>\n\n\n\n
          • 3D Human Skeleton model (hand specific)<\/li>\n\n\n\n
          • Optional: Printed X-rays of hands<\/li>\n\n\n\n
          • Paper and markers for predictions and graphing<\/li>\n<\/ul>\n\n\n\n

            <\/p>\n","protected":false},"excerpt":{"rendered":"

            By the Third-Grade Class of Thela King, Morton Elementary School, Lexington, Nebraska Editor\u2019s Note: This inquiry is a gem from our Dragonfly Magazine archives, originally […]<\/p>\n","protected":false},"author":9421,"featured_media":1374,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[8],"tags":[33,36,27,34],"class_list":["post-1372","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wild-inquiry","tag-art-science","tag-informal-science-education","tag-inquiry-based-learning","tag-k-12-education"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/posts\/1372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/users\/9421"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/comments?post=1372"}],"version-history":[{"count":1,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/posts\/1372\/revisions"}],"predecessor-version":[{"id":1377,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/posts\/1372\/revisions\/1377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/media\/1374"}],"wp:attachment":[{"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/media?parent=1372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/categories?post=1372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.miamioh.edu\/dragonfly\/wp-json\/wp\/v2\/tags?post=1372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}