diff --git a/03.M3P2-pedagogy/02.pedagogy/02.summary/cheatsheet.en.md b/03.M3P2-pedagogy/02.pedagogy/02.summary/cheatsheet.en.md
index aef04e426..18913a044 100755
--- a/03.M3P2-pedagogy/02.pedagogy/02.summary/cheatsheet.en.md
+++ b/03.M3P2-pedagogy/02.pedagogy/02.summary/cheatsheet.en.md
@@ -14,34 +14,35 @@ visible: true
 
 **Pedagogical stage** : small and consistent *set of courses at a specific level*.
 
-**A course** : designed in **3 parts** called *main*, *overview* and *beyong*, **+ 1** *self-evaluation* (expected 2022).  
+**A course** : designed in **3 parts** called *main*, *overview* and *beyong*. <!--, **+ 1** *self-evaluation* (expected 2022). -->
 
-* part "**main**" : to *study thoroughly*, to understand and master, rather than memorize.
+* "**main**" part : to *study thoroughly*, to understand and master, rather than memorize.
 ![](main-700-en.png)
 
-* part "**overview**" : a *complete and synthetic summary*, to see in advance, review, have in hand the main concepts and results.
+* "**overview**" part : a *complete and concise summary*, to plan in advance, review, and have in hand the main concepts and results. 
 ![](sintesis_700-en.png)
 
-* part "**beyong**" : to *go further and beyond that*, to test our understanding, and to widen the scope of our knowledge and scientific culture.
+* "**beyong**" part : to *go further*, to test our understanding, and to widen the scope of our scientific knowledge and culture.
 ![](mas-alla-en.png)
 
 --------------
 
 ##### 3 display windows
 <br>
-To present **3 different related pedagogical contents**<br>
+
+To present **3 different but related pedagogical materials**.<br>
 _For example (on the figures below) the 3 parts (main, overview and beyond) of the same course B._
 
-* **On small screens in portrait format** : smartphones, tablets :<br>
-*1 window displayed at the time*, access to the *others in loop by simply sliding right*
+* **on small screens in portrait orientation** (smartphones & tablets) :<br>
+*1 window displayed at the time*, with access to the *others in a loop by sliding the finger to the right*. 
 ![](modes-2-840-tr.png)
 
-* **0n large screens in landscape format** : tablets, computers :<br>
-*3 windows displays in parallel*, for a simultaneous view.
+* **on large screens in landscape orientation** (tablets, computers) :<br>
+*3 windows displays in parallel* for simultaneous viewing.
 ![](modes-3-840-tr.png)
 
 &nbsp;&nbsp;&nbsp;&nbsp;or *1 window displayed at the time*,<br> 
-&nbsp;&nbsp;&nbsp;&nbsp;access to *others in loop by sliding right*.
+&nbsp;&nbsp;&nbsp;&nbsp; with access to the *others by sliding to the right*.
 ![](modes-1-840-tr.png)
 
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