diff --git a/app/src/main/java/com/hjx/parent/HomeworkFeedbackActivity.java b/app/src/main/java/com/hjx/parent/HomeworkFeedbackActivity.java
index b0a6cfd..16e24ad 100644
--- a/app/src/main/java/com/hjx/parent/HomeworkFeedbackActivity.java
+++ b/app/src/main/java/com/hjx/parent/HomeworkFeedbackActivity.java
@@ -21,6 +21,7 @@ import com.hjx.parent.rx.BaseRxActivity;
 import com.prws.common.bean.Student;
 import com.prws.common.bean.homework.Correction;
 import com.prws.common.bean.homework.CorrectionPoint;
+import com.prws.common.bean.homework.CorrectionSer;
 import com.prws.common.bean.homework.HomeWork;
 import com.prws.common.bean.homework.HomeworkList;
 import com.prws.common.bean.homework.KeyValue;
@@ -97,6 +98,7 @@ public class HomeworkFeedbackActivity extends BaseRxActivity<ActivityHomeworkFee
         body.put("stuId", student.stuId);
         body.put("points", countPoint());
         body.put("correctionList", corrections);
+        body.put("extra", buildExtra());
         NetWorks.service_url.uploadHomeworkFeedback(NetWorks.getHeader(), body)
                 .compose(transformSingle())
                 .subscribe((response, th) -> {
@@ -121,6 +123,16 @@ public class HomeworkFeedbackActivity extends BaseRxActivity<ActivityHomeworkFee
                 });
     }
 
+    private String buildExtra() {
+        if (mList == null || mList.isEmpty()) return null;
+        List<CorrectionSer> maps = new ArrayList<>();
+        for (HomeWork item: mList) {
+            maps.add(item.toSer());
+        }
+        Gson gson = new Gson();
+        return gson.toJson(maps);
+    }
+
     @SuppressLint("CheckResult")
     private List<CorrectionPoint> countPoint() {
         Set<KeyValue> set = new HashSet<>();
diff --git a/libs/common/src/main/java/com/prws/common/bean/homework/CorrectionSer.java b/libs/common/src/main/java/com/prws/common/bean/homework/CorrectionSer.java
new file mode 100644
index 0000000..3b726ec
--- /dev/null
+++ b/libs/common/src/main/java/com/prws/common/bean/homework/CorrectionSer.java
@@ -0,0 +1,16 @@
+package com.prws.common.bean.homework;
+
+public class CorrectionSer {
+    public String brief;
+    public int correction; // 0 对, 1 错
+    public int state; // 1: 已听懂; 2: 基本听懂; 3: 一般听懂
+
+    public CorrectionSer() {
+    }
+
+    public CorrectionSer(String brief, int correction, int state) {
+        this.brief = brief;
+        this.correction = correction;
+        this.state = state;
+    }
+}
diff --git a/libs/common/src/main/java/com/prws/common/bean/homework/HomeWork.java b/libs/common/src/main/java/com/prws/common/bean/homework/HomeWork.java
index 6ac7de9..876a8e6 100644
--- a/libs/common/src/main/java/com/prws/common/bean/homework/HomeWork.java
+++ b/libs/common/src/main/java/com/prws/common/bean/homework/HomeWork.java
@@ -38,4 +38,7 @@ public class HomeWork implements Serializable {
         }
     }
 
+    public CorrectionSer toSer() {
+        return new CorrectionSer(brief, check ? 1 : 0, state);
+    }
 }