diff --git a/resources/images/teacher_close.png b/resources/images/teacher_close.png
index d81f1de5..bee2ea0d 100644
Binary files a/resources/images/teacher_close.png and b/resources/images/teacher_close.png differ
diff --git a/resources/images/teacher_close_disabled.png b/resources/images/teacher_close_disabled.png
new file mode 100644
index 00000000..8f3c988c
Binary files /dev/null and b/resources/images/teacher_close_disabled.png differ
diff --git a/resources/images/teacher_open.png b/resources/images/teacher_open.png
index 9ab58769..17469cc7 100644
Binary files a/resources/images/teacher_open.png and b/resources/images/teacher_open.png differ
diff --git a/resources/images/teacher_open_disabled.png b/resources/images/teacher_open_disabled.png
new file mode 100644
index 00000000..99e78cd9
Binary files /dev/null and b/resources/images/teacher_open_disabled.png differ
diff --git a/resources/sankore.qrc b/resources/sankore.qrc
index 0fff05c3..4c7162ef 100644
--- a/resources/sankore.qrc
+++ b/resources/sankore.qrc
@@ -332,5 +332,7 @@
         <file>images/moveUpDisabled.svg</file>
         <file>images/teacher_close.png</file>
         <file>images/teacher_open.png</file>
+        <file>images/teacher_close_disabled.png</file>
+        <file>images/teacher_open_disabled.png</file>
     </qresource>
 </RCC>
diff --git a/src/board/UBBoardPaletteManager.cpp b/src/board/UBBoardPaletteManager.cpp
index 14006a5e..94c28397 100755
--- a/src/board/UBBoardPaletteManager.cpp
+++ b/src/board/UBBoardPaletteManager.cpp
@@ -734,3 +734,9 @@ void UBBoardPaletteManager::connectToDocumentController()
 {
     emit connectToDocController();
 }
+
+void UBBoardPaletteManager::refreshPalettes()
+{
+    mRightPalette->update();
+    mLeftPalette->update();
+}
diff --git a/src/board/UBBoardPaletteManager.h b/src/board/UBBoardPaletteManager.h
index f2313a71..1399898a 100644
--- a/src/board/UBBoardPaletteManager.h
+++ b/src/board/UBBoardPaletteManager.h
@@ -51,6 +51,7 @@ class UBBoardPaletteManager : public QObject
         void showVirtualKeyboard(bool show = true);
         void initPalettesPosAtStartup();
         void connectToDocumentController();
+        void refreshPalettes();
 
         UBKeyboardPalette *mKeyboardPalette;
         UBRightPalette* createDesktopRightPalette(QWidget* parent);
diff --git a/src/gui/UBTeacherBarWidget.cpp b/src/gui/UBTeacherBarWidget.cpp
index ca505470..2644cb0f 100644
--- a/src/gui/UBTeacherBarWidget.cpp
+++ b/src/gui/UBTeacherBarWidget.cpp
@@ -7,6 +7,7 @@
 #include "document/UBDocumentProxy.h"
 
 #include "board/UBBoardController.h"
+#include "board/UBBoardPaletteManager.h"
 
 UBTeacherBarWidget::UBTeacherBarWidget(QWidget *parent, const char *name):UBDockPaletteWidget(parent)
     , mpLayout(NULL)
@@ -119,6 +120,17 @@ UBTeacherBarWidget::UBTeacherBarWidget(QWidget *parent, const char *name):UBDock
 
     connect(UBApplication::boardController, SIGNAL(activeSceneWillChange()), this, SLOT(saveContent()));
     connect(UBApplication::boardController, SIGNAL(activeSceneChanged()), this, SLOT(loadContent()));
+    connect(mpTitle, SIGNAL(textChanged(QString)), this, SLOT(onValueChanged()));
+    connect(mpPhasis, SIGNAL(currentIndexChanged(int)), this, SLOT(onValueChanged()));
+    connect(mpDuration, SIGNAL(currentIndexChanged(int)), this, SLOT(onValueChanged()));
+    connect(mpEquipment, SIGNAL(textChanged(QString)), this, SLOT(onValueChanged()));
+    connect(mpActivity, SIGNAL(currentIndexChanged(int)), this, SLOT(onValueChanged()));
+    connect(mpAction1->teacher(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
+    connect(mpAction1->student(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
+    connect(mpAction2->teacher(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
+    connect(mpAction2->student(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
+    connect(mpAction3->teacher(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
+    connect(mpAction3->student(), SIGNAL(textChanged()), this, SLOT(onValueChanged()));
 }
 
 UBTeacherBarWidget::~UBTeacherBarWidget()
@@ -228,17 +240,17 @@ UBTeacherBarWidget::~UBTeacherBarWidget()
 void UBTeacherBarWidget::populateCombos()
 {
     QStringList qslPhasis;
-    qslPhasis << tr("I discover") << tr("I experiment") << tr("I train myself") << tr("I play") << tr("I memorize");
+    qslPhasis << tr("") << tr("I discover") << tr("I experiment") << tr("I train myself") << tr("I play") << tr("I memorize");
     mpPhasis->insertItems(0, qslPhasis);
     mpPhasis->setCurrentIndex(0);
 
     QStringList qslDuration;
-    qslDuration << tr("Short") << tr("Middle") << tr("Long");
+    qslDuration << tr("") << tr("Short") << tr("Middle") << tr("Long");
     mpDuration->insertItems(0, qslDuration);
     mpDuration->setCurrentIndex(0);
 
     QStringList qslActivity;
-    qslActivity  << tr("Alone") << tr("By Group") << tr("All together");
+    qslActivity << tr("") << tr("Alone") << tr("By Group") << tr("All together");
     mpActivity->insertItems(0, qslActivity);
     mpActivity->setCurrentIndex(0);
 }
@@ -276,6 +288,33 @@ void UBTeacherBarWidget::loadContent()
     mpAction3->setStudentText(nextInfos.action3Student);
 }
 
+void UBTeacherBarWidget::onValueChanged()
+{
+    if( mpTitle->text() == ""
+        && mpDuration->currentIndex() == 0
+        && mpPhasis->currentIndex() == 0
+        && mpEquipment->text() == ""
+        && mpActivity->currentIndex() == 0
+        && mpAction1->teacherText() == ""
+        && mpAction1->studentText() == ""
+        && mpAction2->teacherText() == ""
+        && mpAction2->studentText() == ""
+        && mpAction3->teacherText() == ""
+        && mpAction3->studentText() == "")
+    {
+        mIconToLeft = QPixmap(":images/teacher_open_disabled.png");
+        mIconToRight = QPixmap(":images/teacher_close_disabled.png");
+    }
+    else
+    {
+        mIconToLeft = QPixmap(":images/teacher_open.png");
+        mIconToRight = QPixmap(":images/teacher_close.png");
+    }
+
+    // TODO: refresh the icon
+    UBApplication::boardController->paletteManager()->refreshPalettes();
+}
+
 UBTeacherStudentAction::UBTeacherStudentAction(int actionNumber, QWidget *parent, const char *name):QWidget(parent)
     , mpActionLabel(NULL)
     , mpTeacherLabel(NULL)
@@ -381,3 +420,13 @@ void UBTeacherStudentAction::setStudentText(QString text)
 {
     mpStudent->setText(text);
 }
+
+QTextEdit* UBTeacherStudentAction::teacher()
+{
+    return mpTeacher;
+}
+
+QTextEdit* UBTeacherStudentAction::student()
+{
+    return mpStudent;
+}
diff --git a/src/gui/UBTeacherBarWidget.h b/src/gui/UBTeacherBarWidget.h
index 7e2744ec..555b6ef6 100644
--- a/src/gui/UBTeacherBarWidget.h
+++ b/src/gui/UBTeacherBarWidget.h
@@ -22,6 +22,8 @@ public:
     QString studentText();
     void setTeacherText(QString text);
     void setStudentText(QString text);
+    QTextEdit* teacher();
+    QTextEdit* student();
 
 private:
     int mActionNumber;
@@ -45,6 +47,7 @@ public:
 private slots:
     void saveContent();
     void loadContent();
+    void onValueChanged();
 
 private:
     void populateCombos();