Update 00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/10.n1/10.brainstorming/textbook.en.md

00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/10.n1/10.brainstorming/textbook.en.md

@@ -12,6 +12,17 @@ lessons:
 
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+#### Advice on how to structure this level 1 
+
+At this first level, think:    
+ * What knowledge on this topic is useful in everyday life.
+ * Start from the actions and perceptions of the daily life, using the right vocabulary (example: the arm lever, the couple to remove a bolt with a jack, the figure skater, ...).
+ * What amazes us? (example, gyroscope, spinning top). 
+
+At this first level, chapter titles should used everyday words.
+
+--------------------------------
+
 This level 1 brainstorming can be seen in its multilingual version at: 
 
 https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n1/brainstorming