diff --git a/Chapter6.zip b/Chapter6.zip
index 70231eb..4288bb2 100644
Binary files a/Chapter6.zip and b/Chapter6.zip differ
diff --git a/Chapter6/frmMain.Designer.cs b/Chapter6/frmMain.Designer.cs
index d61c546..6445ff1 100644
--- a/Chapter6/frmMain.Designer.cs
+++ b/Chapter6/frmMain.Designer.cs
@@ -70,7 +70,7 @@ namespace Chapter6
             // mnuFileExit
             // 
             this.mnuFileExit.Name = "mnuFileExit";
-            this.mnuFileExit.Size = new System.Drawing.Size(152, 22);
+            this.mnuFileExit.Size = new System.Drawing.Size(93, 22);
             this.mnuFileExit.Text = "Exit";
             this.mnuFileExit.Click += new System.EventHandler(this.mnuFileExit_Click_1);
             // 
@@ -86,12 +86,14 @@ namespace Chapter6
             this.mnuEditCalculate.Name = "mnuEditCalculate";
             this.mnuEditCalculate.Size = new System.Drawing.Size(153, 22);
             this.mnuEditCalculate.Text = "Calculate";
+            this.mnuEditCalculate.Click += mnuEditCalculate_Click;
             // 
             // mnuEditSummary
             // 
             this.mnuEditSummary.Name = "mnuEditSummary";
             this.mnuEditSummary.Size = new System.Drawing.Size(153, 22);
             this.mnuEditSummary.Text = "Summary";
+            this.mnuEditSummary.Click += new System.EventHandler(this.mnuEditSummary_Click);
             // 
             // mnuEditShowStudents
             // 
diff --git a/Chapter6/frmMain.cs b/Chapter6/frmMain.cs
index 560b6fd..c0ded0c 100644
--- a/Chapter6/frmMain.cs
+++ b/Chapter6/frmMain.cs
@@ -19,5 +19,41 @@ namespace Chapter6
         {
             Close();
         }
+
+        private void mnuEditCalculate_Click(object sender, EventArgs e)
+        {
+            frmCalculate aform = new frmCalculate();
+
+            mnuFile.Visible = true;
+            mnuEditSummary.Enabled = true;
+
+
+            aform.MdiParent = this;
+            aform.StartPosition = FormStartPosition.CenterParent;
+            aform.Show();
+            aform.Focus();
+
+            mnuEditCalculate.Checked = true;
+            
+           
+
+        }
+
+        private void mnuEditSummary_Click(object sender, EventArgs e)
+        {
+            frmSummary aform = new frmSummary();
+
+                mnuFile.Visible = true;
+                mnuEditSummary.Enabled = true;
+
+
+                aform.MdiParent = this;
+                aform.StartPosition = FormStartPosition.CenterParent;
+                aform.Show();
+                aform.Focus();
+
+                mnuEditCalculate.Checked = true;
+            
+        }
     }
 }
\ No newline at end of file