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diff --git a/home/index.html b/home/index.html
index fb79833..ab71a87 100644
--- a/home/index.html
+++ b/home/index.html
@@ -93,25 +93,25 @@
             <div class="scroll">
                 <h2 class="section-title home-notice-title">新着情報(2022年)</h2>
                 <ul class="notice">
-                    <li>
+                    <li class="new">
                         <a href="../2022-activities/index.html">
                           <span class="news-title">お知らせ</span>
-                          <time datetime="2023-1-7">[ 2023.1.7 ]</time>
-                          <p>活動掲載に本講義18回目の様子を掲載しました。</p>
+                          <time datetime="2023-02-04">[ 2023.2.4 ]</time>
+                          <p>活動掲載に本講義20回目の様子を掲載しました。</p>
                         </a>
                     </li>
-                    <li>
+                    <li class="new">
                         <a href="../2022-activities/index.html">
                           <span class="news-title">お知らせ</span>
-                          <time datetime="2022-12-17">[ 2022.12.17 ]</time>
-                          <p>活動掲載に本講義17回目の様子を掲載しました。</p>
+                          <time datetime="2023-01-28">[ 2023.1.28 ]</time>
+                          <p>活動掲載に第二段階成果発表会の様子を掲載しました。</p>
                         </a>
                     </li>
-                    <li>
+                    <li class="new">
                         <a href="../2022-activities/index.html">
                           <span class="news-title">お知らせ</span>
-                          <time datetime="2022-12-03">[ 2022.12.03 ]</time>
-                          <p>活動掲載に本講義16回目の様子を掲載しました。</p>
+                          <time datetime="2023-01-21">[ 2023.1.21 ]</time>
+                          <p>活動掲載に本講義19回目の様子を掲載しました。</p>
                         </a>
                     </li>
                     
@@ -134,6 +134,26 @@
         <section id="home-class_content" class="wrapper">
             <h2 class="section-title scroll">授業内容について</h2>
             <div class="grid"> 
+                <a class="class_content-item scroll" href="../2022-activities/index.html#class28">
+                    <div class="item fadein">
+                      <img class="fadein" src="../2022-activities/img/0204-1.jpg" alt="../class_content/index.html">
+                      <div class="item-content">
+                        <p class="item-cat">class content</p>
+                      <p class="item-text">2月4日 本講義</p>
+                        <p class="item-date">2023.2.4</p>
+                      </div>
+                    </div>
+                </a>
+                <a class="class_content-item scroll" href="../2022-activities/index.html#class26">
+                    <div class="item fadein">
+                    <img class="fadein" src="../2022-activities/img/0121-1.JPG" alt="../class_content/index.html">
+                    <div class="item-content">
+                        <p class="item-cat">class content</p>
+                        <p class="item-text">1月21日 本講義</p>
+                        <p class="item-date">2023.1.21</p>
+                    </div>
+                    </div>
+                    </a>  
                 <a class="class_content-item scroll" href="../2022-activities/index.html#class25">
                     <div class="item fadein">
                       <img class="fadein" src="../2022-activities/img/0107-1.jpg" alt="../class_content/index.html">
@@ -143,26 +163,6 @@
                         <p class="item-date">2023.1.7</p>
                       </div>
                     </div>
-                </a>
-                <a class="class_content-item scroll" href="../2022-activities/index.html#class24">
-                    <div class="item fadein">
-                    <img class="fadein" src="../2022-activities/img/1217-1.JPG" alt="../class_content/index.html">
-                    <div class="item-content">
-                        <p class="item-cat">class content</p>
-                        <p class="item-text">12月17日 本講義</p>
-                        <p class="item-date">2022.12.17</p>
-                    </div>
-                    </div>
-                    </a>  
-                <a class="class_content-item scroll" href="../2022-activities/index.html#class23">
-                    <div class="item fadein">
-                      <img class="fadein" src="../2022-activities/img/1203-4.jpg" alt="../class_content/index.html">
-                      <div class="item-content">
-                        <p class="item-cat">class content</p>
-                      <p class="item-text">12月3日 本講義</p>
-                        <p class="item-date">2022.12.03</p>
-                      </div>
-                    </div>
                 </a>