diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b04564c..7c528cf 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -29,6 +29,8 @@
             android:name=".SettingsActivity"
             android:label="@string/title_activity_setting" >
         </activity>
+        <activity android:name=".lesson25.Lesson25Activity" >
+        </activity>
     </application>
 
 </manifest>
diff --git a/app/src/main/java/com/example/rssreader/MainActivity.java b/app/src/main/java/com/example/rssreader/MainActivity.java
index d0ab134..08e2cbf 100644
--- a/app/src/main/java/com/example/rssreader/MainActivity.java
+++ b/app/src/main/java/com/example/rssreader/MainActivity.java
@@ -15,6 +15,7 @@
 import android.widget.ListView;
 
 import com.example.rssreader.db.FeedItemEntity;
+import com.example.rssreader.lesson25.Lesson25Activity;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -94,6 +95,12 @@ public boolean onOptionsItemSelected(MenuItem item) {
             return true;
         }
 
+        if (id == R.id.action_lesson25) {
+            Intent intent = new Intent(this, Lesson25Activity.class);
+            startActivity(intent);
+            return true;
+        }
+
         return super.onOptionsItemSelected(item);
     }
 
diff --git a/app/src/main/java/com/example/rssreader/lesson25/Lesson25Activity.java b/app/src/main/java/com/example/rssreader/lesson25/Lesson25Activity.java
new file mode 100644
index 0000000..116e8ac
--- /dev/null
+++ b/app/src/main/java/com/example/rssreader/lesson25/Lesson25Activity.java
@@ -0,0 +1,93 @@
+package com.example.rssreader.lesson25;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.widget.CheckBox;
+import android.widget.EditText;
+
+import com.example.rssreader.R;
+
+public class Lesson25Activity extends AppCompatActivity {
+
+    private static final String TAG = Lesson25Activity.class.getSimpleName();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_lesson25);
+
+        // TODO: [1] onCreate Log
+        Log.d(TAG, "onCreate が呼ばれた");
+
+        // TODO: [2]savedInstanceState からデータを復元しよう
+        if (savedInstanceState != null) {
+
+            String editTextString = savedInstanceState.getString("EDIT_TEXT");
+            EditText editText = (EditText) findViewById(R.id.lessonEditText);
+            editText.setText(editTextString);
+
+            boolean isChecked = savedInstanceState.getBoolean("CHECK_BOX");
+            CheckBox checkBox = (CheckBox) findViewById(R.id.lessonCheckBox);
+            checkBox.setChecked(isChecked);
+        }
+    }
+
+    // TODO: [1] onStart
+    @Override
+    protected void onStart() {
+        super.onStart();
+        Log.d(TAG, "_onStart が呼ばれた");
+    }
+
+    // TODO: [1] onResume
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        Log.d(TAG, "__onResume が呼ばれた");
+    }
+
+    // TODO: [1] onRestart
+    @Override
+    protected void onRestart() {
+        super.onRestart();
+        Log.d(TAG, "*onRestart が呼ばれた");
+    }
+
+    // TODO: [1] onPause
+    @Override
+    protected void onPause() {
+        Log.d(TAG, "__onPause が呼ばれた");
+        super.onPause();
+    }
+
+    // TODO: [1] onStop
+    @Override
+    protected void onStop() {
+        Log.d(TAG, "_onStop が呼ばれた");
+        super.onStop();
+    }
+
+    // TODO: [1] onDestroy
+    @Override
+    protected void onDestroy() {
+        Log.d(TAG, "onDestroy が呼ばれた");
+        super.onDestroy();
+    }
+
+    // TODO: [2] onSaveInstanceState でデータを格納しよう
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        EditText editText = (EditText) findViewById(R.id.lessonEditText);
+        outState.putString("EDIT_TEXT", editText.getText().toString());
+
+        CheckBox checkBox = (CheckBox) findViewById(R.id.lessonCheckBox);
+        outState.putBoolean("CHECK_BOX", checkBox.isChecked());
+    }
+
+
+
+}
diff --git a/app/src/main/java/com/example/rssreader/lesson25/LessonItem.java b/app/src/main/java/com/example/rssreader/lesson25/LessonItem.java
new file mode 100644
index 0000000..f833bd5
--- /dev/null
+++ b/app/src/main/java/com/example/rssreader/lesson25/LessonItem.java
@@ -0,0 +1,7 @@
+package com.example.rssreader.lesson25;
+
+/**
+ * Created by akkuma on 2015/10/21.
+ */
+public class LessonItem {
+}
diff --git a/app/src/main/res/layout/activity_lesson25.xml b/app/src/main/res/layout/activity_lesson25.xml
new file mode 100644
index 0000000..af43848
--- /dev/null
+++ b/app/src/main/res/layout/activity_lesson25.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:orientation="vertical"
+    tools:context="com.example.rssreader.lesson25.Lesson25Activity">
+
+    <EditText
+        android:id="@+id/lessonEditText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="EditText"/>
+
+    <CheckBox
+        android:id="@+id/lessonCheckBox"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="チェックボックス"/>
+
+
+</LinearLayout>
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index b1cb908..8636604 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -3,4 +3,6 @@
     xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
     <item android:id="@+id/action_settings" android:title="@string/action_settings"
         android:orderInCategory="100" app:showAsAction="never" />
+    <item android:id="@+id/action_lesson25" android:title="Lesson25Activityを表示"
+          android:orderInCategory="99" app:showAsAction="never" />
 </menu>