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 c3127f22..e20b5af5 100644
--- a/备课组/26届/校本材料.json
+++ b/备课组/26届/校本材料.json
@@ -4413,6 +4413,44 @@
                 "021417"
             ],
             "remarks": ""
+        },
+        "G20260246": {
+            "id": "G20260246",
+            "name": "利用导数研究函数的极值",
+            "filename": "利用导数研究函数的极值",
+            "objects": [
+                "K0233001X",
+                "K0233002X",
+                "K0233003X"
+            ],
+            "basicknowledges": [
+                "B00229",
+                "B00230"
+            ],
+            "examples_basic": [
+                "019090",
+                "019091",
+                "019092",
+                "019094"
+            ],
+            "work_inclass": [
+                "009920",
+                "009921"
+            ],
+            "homework": [
+                "021418",
+                "021419",
+                "021420",
+                "021421",
+                "021422",
+                "021423",
+                "021424",
+                "021425",
+                "021426",
+                "021427",
+                "021428"
+            ],
+            "remarks": ""
         }
     }
 }
\ No newline at end of file