diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.fr.md
index f95927658..0c958d994 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.fr.md
@@ -3,18 +3,10 @@ title: Brainstorming sur les outils mathématiques requis à chaque niveau
 published: true
 routable: true
 visible: false
-lessons:
-    - slug: definir-234-outil-mathematique
-      order: 2
-    - slug: define-3-mathematical-tools-polyglot
-      order: 1
----
-
-<!----------------------------------------------
 lessons:
     - slug: brainstorming-234-mathematical-tools
       order: 2
------------------------------------------------>
+---
       
 
 #### Définir les outils mathématiques requis au niveau 3