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diff --git a/_subsections/sec04/lesson-04.org b/_subsections/sec04/lesson-04.org
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--- a/_subsections/sec04/lesson-04.org
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@@ -53,3 +53,47 @@
 
   #+attr_html: :width 600px
   file:../../_share/media/img/section04/lesson04/EX03.png
+
+**** frame duration
+- the frame duration textbox allows you to set the duration of a specific frame
+- this is apparently done by time
+
+*** adding frames
+- click on the add frames button
+  #+attr_html: :width 600px
+  file:../../_share/media/img/section04/lesson04/EX04a.png
+
+- add a sprite sheet
+- resize the sprite grid so godot can know what the sprites are
+  #+attr_html: :width 600px
+  file:../../_share/media/img/section04/lesson04/EX04b.png
+
+- when you are satisfied with the frames available, select all and add the frames
+  #+attr_html: :width 600px
+  file:../../_share/media/img/section04/lesson04/EX04c.png
+
+** resources
+- currently the sprite we created is embedded as an internal resource to our plane scene
+- if you save it, then the information regarding the frames will be moved to that tres file you saved
+  - allows you to reuse the frame resource
+
+*** saving the sprite frame as a resource
+- click on Inspector->AnimatedSprite2D->Animation->Sprite Frame drop down arrow
+- in the pop up menu click on 'save as'
+
+  #+attr_html: :width 300px
+  file:../../_share/media/img/section04/lesson04/EX05.png
+
+** NOTE: if the plane is too large (or small)
+- go to the plane scene
+- select the AnimatedSprite2D from the scene menu
+- go to Inspector->Node2D->Transform->Scale
+- change values as appropriate
+
+** add the plane scene
+ 1. go to the game scene
+ 2. click on the 'instantiate child node'
+    #+attr_html: :width 300px
+    file:../../_share/media/img/section04/lesson04/EX06a.png
+
+ 3. from dialog popup, select the plane.tscn scene