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 2fe5a3de..1b647146 100644
--- a/备课组/26届/校本材料.json
+++ b/备课组/26届/校本材料.json
@@ -3281,6 +3281,82 @@
                 "018413"
             ],
             "remarks": ""
+        },
+        "G20260215": {
+            "id": "G20260215",
+            "name": "余弦定理(1)",
+            "filename": "余弦定理(1)",
+            "objects": [
+                "K0315001B",
+                "K0315002B",
+                "K0315003B",
+                "K0315004B"
+            ],
+            "basicknowledges": [
+                "B00149",
+                "B00150"
+            ],
+            "examples_basic": [
+                "018414",
+                "018415",
+                "018416"
+            ],
+            "work_inclass": [
+                "009582",
+                "009583",
+                "009584"
+            ],
+            "homework": [
+                "021619",
+                "021620",
+                "021615",
+                "021616",
+                "021618",
+                "021629",
+                "010256",
+                "010259",
+                "010266"
+            ],
+            "remarks": ""
+        },
+        "G20260216": {
+            "id": "G20260216",
+            "name": "余弦定理(2)",
+            "filename": "余弦定理(2)",
+            "objects": [
+                "K0308003B",
+                "K0316001B",
+                "K0316002B"                
+            ],
+            "basicknowledges": [
+                "B00151",
+                "B00152",
+                "B00153"
+            ],
+            "examples_basic": [
+                "018418",
+                "018419",
+                "018420",
+                "018421"
+            ],
+            "work_inclass": [
+                "009585",
+                "009586",
+                "009587",
+                "009588"
+            ],
+            "homework": [
+                "021631",
+                "021622",
+                "021623",
+                "021633",
+                "021627",
+                "021628",
+                "018423",
+                "018424",
+                "006417"
+            ],
+            "remarks": ""
         }
     }
 }
\ No newline at end of file