diff --git a/备课组/26届/校本材料.json b/备课组/26届/校本材料.json
index 39a05d4e..b83b6732 100644
--- a/备课组/26届/校本材料.json
+++ b/备课组/26届/校本材料.json
@@ -4212,6 +4212,51 @@
                 "021374"
             ],
             "remarks": ""
+        },
+        "G20260241": {
+            "id": "G20260241",
+            "name": "导数的几何意义",
+            "filename": "导数的几何意义",
+            "objects": [
+                "K0228001X",
+                "K0228002X",
+                "K0228003X",
+                "K0228004X",
+                "K0228005X"
+            ],
+            "basicknowledges": [
+                "B00215",
+                "B00216",
+                "B00217",
+                "B00218",
+                "B00219"
+            ],
+            "examples_basic": [
+                "023639",
+                "019059",
+                "019060",
+                "019061",
+                "019062"
+            ],
+            "work_inclass": [
+                "009907",
+                "009908"
+            ],
+            "homework": [
+                "021375",
+                "021376",
+                "021377",
+                "021378",
+                "021379",
+                "021380",
+                "021381",
+                "021382",
+                "021383",
+                "021384",
+                "021385",
+                "021386"
+            ],
+            "remarks": ""
         }
     }
 }
\ No newline at end of file