Custom ControlTemplate displaying words "ControlTemplate" - wpf

Question

I am trying to modify the ControlTemplate of CheckBox. I got the default template from ExpressionBlend and dropped it into a CheckBox.
Why does it now display the text "System.Windows.Controls.ControlTemplate" next to the CheckBox?
<CheckBox IsChecked="True">
<!-- the following is from ExpressionBlend -->
<ControlTemplate TargetType="{x:Type CheckBox}">
<ControlTemplate.Resources>
<Storyboard x:Key="HoverOn">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="BackgroundOverlay" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="HoverOff">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="BackgroundOverlay" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.4000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="PressedOn">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="PressedRectangle" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="PressedOff">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="PressedRectangle" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.3000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="CheckedTrue">
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="CheckIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="IndeterminateIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.4000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="CheckedFalse">
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="CheckIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.4000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="IndeterminateIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.4000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="IndeterminateOn">
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="CheckIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.2000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="IndeterminateIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.2000000" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="IndeterminateOff">
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="IndeterminateIcon" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.4000000" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="FocussedOn">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ContentFocusVisualElement" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="FocussedOff">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ContentFocusVisualElement" Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00.3000000" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<BulletDecorator Background="Transparent" x:Name="bulletDecorator">
<BulletDecorator.Bullet>
<Grid Width="16" Height="16">
<Rectangle Height="14" Margin="1" x:Name="Background"
Width="14" Fill="{TemplateBinding Background}"
Stroke="{TemplateBinding BorderBrush}"
StrokeThickness="{TemplateBinding BorderThickness}" />
<Rectangle Height="14" Margin="1" x:Name="BackgroundOverlay"
Width="14" Opacity="0" Fill="{x:Null}"
Stroke="{StaticResource HoverBrush}"
StrokeThickness="2" />
<Rectangle Height="16" x:Name="PressedRectangle"
Width="16" IsHitTestVisible="false" Opacity="0"
Stroke="{StaticResource HoverBrush}"
StrokeThickness="1" />
<Path Height="10" Margin="1,1,0,1.5" x:Name="CheckIcon"
Width="10.5" Opacity="0" Fill="{StaticResource GlyphBrush}"
Stretch="Fill"
Data="M102.03442,598.79645 L105.22962,597.78918 L106.78825,600.42358 C106.78825,600.42358 108.51028,595.74304 110.21724,593.60419 C112.00967,591.35822 114.89314,591.42316 114.89314,591.42316 C114.89314,591.42316 112.67844,593.42645 111.93174,594.44464 C110.7449,596.06293 107.15683,604.13837 107.15683,604.13837 z" />
<Rectangle Height="8" x:Name="IndeterminateIcon"
Width="10" Opacity="0" Fill="{StaticResource GlyphBrush}" />
<Rectangle Height="14" x:Name="DisabledVisualElement"
Width="14" Opacity="0" Fill="{StaticResource DisabledBackgroundBrush}" />
<Rectangle Height="16" x:Name="ContentFocusVisualElement"
Width="16" IsHitTestVisible="false" Opacity="0"
Stroke="{StaticResource HoverShineBrush}"
StrokeThickness="1" />
<Rectangle Height="12" x:Name="ShineRectangle"
Width="14" IsHitTestVisible="false" Opacity="1"
Stroke="{x:Null}"
StrokeThickness="1"
Fill="{StaticResource ShineBrush}"
Margin="2,2,2,2" />
</Grid>
</BulletDecorator.Bullet>
<ContentPresenter RecognizesAccessKey="True"
Margin="5,0,0,0"
VerticalAlignment="Top" HorizontalAlignment="Left" />
</BulletDecorator>
<ControlTemplate.Triggers>
<Trigger Property="IsFocused" Value="True">
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource FocussedOff}"
x:Name="FocussedOff_BeginStoryboard"/>
</Trigger.ExitActions>
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource FocussedOn}"
x:Name="FocussedOn_BeginStoryboard"/>
</Trigger.EnterActions>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsChecked" Value="True" />
<Condition Property="IsThreeState" Value="True" />
</MultiTrigger.Conditions>
<MultiTrigger.EnterActions>
<BeginStoryboard x:Name="ThreeStateOn_BeginStoryboard" Storyboard="{StaticResource CheckedFalse}" />
</MultiTrigger.EnterActions>
<MultiTrigger.ExitActions>
<BeginStoryboard x:Name="ThreeStateOff_BeginStoryboard" Storyboard="{StaticResource CheckedTrue}" />
</MultiTrigger.ExitActions>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsChecked" Value="{x:Null}" />
<Condition Property="IsThreeState" Value="True" />
</MultiTrigger.Conditions>
<MultiTrigger.EnterActions>
<BeginStoryboard x:Name="ThreeStateOn1_BeginStoryboard" Storyboard="{StaticResource IndeterminateOn}" />
</MultiTrigger.EnterActions>
<MultiTrigger.ExitActions>
<BeginStoryboard x:Name="ThreeStateOff1_BeginStoryboard" Storyboard="{StaticResource IndeterminateOff}" />
</MultiTrigger.ExitActions>
<Setter Property="Visibility" TargetName="CheckIcon" Value="Hidden"/>
</MultiTrigger>
<Trigger Property="IsChecked" Value="True">
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource CheckedFalse}"
x:Name="CheckedTrue_BeginStoryboard"/>
</Trigger.ExitActions>
<Trigger.EnterActions>
<BeginStoryboard x:Name="CheckedTrue_BeginStoryboard1" Storyboard="{StaticResource CheckedTrue}"/>
</Trigger.EnterActions>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource HoverOn}"/>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource HoverOff}"/>
</Trigger.ExitActions>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Fill" Value="{DynamicResource DisabledBackgroundBrush}" TargetName="Background" />
<Setter Property="Stroke" Value="{DynamicResource DisabledBorderBrush}" TargetName="Background" />
<Setter Property="Foreground" Value="{DynamicResource DisabledForegroundBrush}" />
<Setter Property="Opacity" TargetName="bulletDecorator" Value="0.5"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</CheckBox>

Answer 1

This is because you assign ControlTemplate as a value of CheckBox. You should assign it to the Template property:
<CheckBox IsChecked="True">
<CheckBox.Template>
<ControlTemplate TargetType="{x:Type CheckBox}">
...
</ControlTemplate>
</CheckBox.Template>
</CheckBox>