Add news story about knowledge mapping technique

Links to Dartmouth News article on mapping student conceptual
knowledge from short multiple-choice quizzes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jeremymanning

data/news.xlsx

@@ -66,6 +66,14 @@ <h3>Curious about what's new in the Land of Science (or at least our little corn
             <section class="content-section news-section">
                 <div class="news-list">
                                     <div class="news-item">
+                    <img src="images/news/map2.png" alt="New technique maps what students know using short quizzes" class="news-thumbnail">
+                    <div class="news-content">
+                        <h3><a href="https://home.dartmouth.edu/news/2026/03/new-technique-maps-what-students-know-using-short-quizzes" target="_blank">New technique maps what students know using short quizzes</a></h3>
+                        <p>Dartmouth researchers have developed a mathematical technique for mapping a student's conceptual knowledge from their performance on short multiple-choice quizzes, creating a detailed topography that captures both areas of mastery and struggle.</p>
+                    </div>
+                </div>
+
+                <div class="news-item">
                     <img src="images/news/claudia-gonciulea.png" alt="Claudia Gonciulea joins the lab!" class="news-thumbnail">
                     <div class="news-content">
                         <h3>Claudia Gonciulea joins the lab!</h3>