diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/textbook.fr.md
index a400ab8e8..5870d6ece 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/textbook.fr.md
@@ -3,12 +3,21 @@ title: Brainstorming sur les outils mathématiques requis à chaque niveau
 published: true
 routable: true
 visible: false
+lessons:
+    - slug: definir-g12-outil-mathematique
+      order: 3
+    - slug: definir-234-outil-mathematique
+      order: 1
+---
+
+<!----------------------------------------------
 lessons:
     - slug: brainstorming-g12-mathematical-tools
       order: 3
     - slug: brainstorming-234-mathematical-tools
       order: 1
----
+----------------------------------------------->
+
 
 #### Brainstorming sur les outils mathématiques requis au niveau 1