diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.en.md
deleted file mode 100644
index 6aaf8d835..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.en.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-title: Brainstorming to structure a theme "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 1
----
-
-#### Brainstorming to structure a theme "Classical mechanics" : level 1
-
---------------------------------
-
-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
-
--------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.es.md
deleted file mode 100644
index 70c4058c3..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.es.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-title: Lluvia de ideas para estructurar un tema "Mecanica clasica"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 1
----
-
-#### Lluvia de ideas para estructurar un tema "Mecanica clasica" : level 1
-
---------------------------------
-
-Esta lluvia de ideas de nivel 1 se puede ver en su versión multilingüe en :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n1/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.fr.md
deleted file mode 100644
index e4420b76a..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/10.brainstorming/textbook.fr.md
+++ /dev/null
@@ -1,66 +0,0 @@
----
-title: Brainstorming pour structurer une thème "Mécanique classique"
-published: true
-routable: true
-visible: false
-lessons:
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 1
----
-
-#### Brainstorming pour structurer un thème "Mécanique classique" : niveau 1
-
---------------------
-
-### Avant-propos
-
-C'est une *étape importante*, parce que ce sera
-la première **arborescence des systèmes de fichiers et sous-fichiers** dans lesquels les contributeurs travailleront.
-
-Cette arborescence *pourra évoluer*, mais elle est moins agile que les contenus pédagogiques
-eux-mêmes. En eux-mêmes, les titres des chapitres et sous chapitres ont moins d'importances.
-Ils peuvent se changer facilement, ils ne sont pas la structure.
-
-
-#### Conseils pour penser la structuration de ce niveau 1
-
-A ce premier niveau, penser :
-Quelles connaissances sur ce thème sont utile dans la vie de tous les jours,
- ou pour comprendre les technologies à venir?
-Qu'est-ce qui les inquiètent ou leur fait peur ?
-Qu'est-ce qui les étonne et émerveille?
-
-Les titres de chapitre doivent être des mots de tous les jours, parlant.
-
-#### Pour participer
-
-Les différentes propositions sont numérotées : elles commencent par :
-[BRST-EMG1-numéro] : Titre
-_(BRST-EMG1 pour Brainstorming STructure ElectroMaGnétism niveau 1)_
-
-Pour **ajouter une proposition, créez la** dans ou à la suite (suivant la logique de la proposition)
-des propositions existantes. Pour cela, commencer par :
-*nouveau [BRST-EMG1-numéro] + (trois initiales entre parenthèse vous représentants) + Titre*
-
-Pour **réagir à une proposition existante**, rajouter votre commentaire à la suite des autres
-en commençant par trois initiales entre parenthèse vous représentants :
-(CLM) : commentaire d'untel
-*(mes initiales) : mon commentaire*
-
-Pour **communiquer mes propositions**, soit:
-* Directement sur le **GitLab M3P2 avec votre login / password**, en cliquant sur Améliorer ce cours
- à la fin de cette page.
-* Sur le **document googledoc** : à préciser.
-
-Le Gitlab sera maintenu à jour de vos propositions, traduites aussi en anglais et en espagnol.
-_(Cela n'est pas requis, mais si vous pouvez aussi faire votre contribution en français, plus en_
-_anglais ou en espagnol, cela allègera ce travail de traduction)._
-
-Cette page à ce niveau peut être vue en version multilangues à :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n1/brainstorming
-
-----------------------------------------
-
-### Brainstorming
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/20.figures/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/20.figures/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/30.exercices/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n1/30.exercices/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.en.md
deleted file mode 100644
index ce1c5d398..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.en.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: Brainstorming to structure a theme "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 2
- - slug: brainstorming-234-classical-mechanics
- order: 1
----
-
-#### Brainstorming to structure a theme "Classical mechanics" : level 2
-
---------------------------------
-
-This level 2 brainstorming can be seen in its multilingual version at:
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n2/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.es.md
deleted file mode 100644
index c685cfdef..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.es.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: Lluvia de ideas para estructurar un tema "Mecanica clasica"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 2
- - slug: brainstorming-234-classical-mechanics
- order: 1
----
-
-#### Lluvia de ideas para estructurar un tema "Mecanica clasica" : level 2
-
---------------------------------
-
-Esta lluvia de ideas de nivel 2 se puede ver en su versión multilingüe en :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n2/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.fr.md
deleted file mode 100644
index cc050194a..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/10.brainstorming/textbook.fr.md
+++ /dev/null
@@ -1,22 +0,0 @@
----
-title: Brainstorming pour structurer une thème "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 2
- - slug: brainstorming-234-classical-mechanics
- order: 1
----
-
-#### Brainstorming pour structurer un thème "Classical mechanics" : niveau 2
-
---------------------------------
-
-Ce brainstorming de niveau 2 peut être vue en version multilangues à :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n2/brainstorming
-
---------------------------------
-
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/20.figures/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/20.figures/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/30.exercices/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n2/30.exercices/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.en.md
deleted file mode 100644
index 2ce22ed81..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.en.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: Brainstorming to structure a theme "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 3
- - slug: brainstorming-234-classical-mechanics
- order: 2
----
-
-#### Brainstorming to structure a theme "Classical mechanics" : level 3
-
---------------------------------
-
-This level 3 brainstorming can be seen in its multilingual version at:
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n3/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.es.md
deleted file mode 100644
index 725f9b08b..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.es.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: Lluvia de ideas para estructurar un tema "Mecanica clasica"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 3
- - slug: brainstorming-234-classical-mechanics
- order: 1
----
-
-#### Lluvia de ideas para estructurar un tema "Mecanica clasica" : level 3
-
---------------------------------
-
-Esta lluvia de ideas de nivel 3 se puede ver en su versión multilingüe en :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n3/brainstorming
-
--------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.fr.md
deleted file mode 100644
index b3a720c66..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/10.brainstorming/textbook.fr.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: Brainstorming pour structurer une thème "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-123-classical-mechanics
- order: 3
- - slug: brainstorming-234-classical-mechanics
- order: 2
----
-
-#### Brainstorming pour structurer un thème "Classical mechanics" : niveau 3
-
---------------------------------
-
-Ce brainstorming de niveau 3 peut être vue en version multilangues à :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n3/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/20.figures/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/20.figures/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/30.exercices/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n3/30.exercices/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.en.md
deleted file mode 100644
index ad73f1b33..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.en.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-title: Brainstorming to structure a theme "Classical mechanics"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-234-classical-mechanics
- order: 3
----
-
-#### Brainstorming to structure a theme "Classical mechanics" : level 4
-
---------------------------------
-
-This level 4 brainstorming can be seen in its multilingual version at:
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n4/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.es.md
deleted file mode 100644
index c0f325349..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.es.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-title: Lluvia de ideas para estructurar un tema "Mecanica clasica"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-234-classical-mechanics
- order: 3
----
-
-#### Lluvia de ideas para estructurar un tema "Mecanica clasica" : level 4
-
---------------------------------
-
-Esta lluvia de ideas de nivel 4 se puede ver en su versión multilingüe en :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n4/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.fr.md
deleted file mode 100644
index c459776f7..000000000
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/10.brainstorming/textbook.fr.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-title: Brainstorming pour structurer une thème "Mécanique classique"
-published: true
-routable: true
-visible: false
-lessons:
- - slug: brainstorming-234-classical-mechanics
- order: 3
----
-
-#### Brainstorming pour structurer une thème "Mécanique classique" : niveau 4
-
---------------------------------
-
-Ce brainstorming de niveau 4 peut être vue en version multilangues à :
-
-https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n4/brainstorming
-
---------------------------------
\ No newline at end of file
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/20.figures/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/20.figures/.gitkeep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/30.exercices/.gitkeep b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/classical-mechanics/n4/30.exercices/.gitkeep
deleted file mode 100644
index e69de29bb..000000000