diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/textbook.fr.md
index 38c299306..812f6c94f 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/textbook.fr.md
@@ -4,10 +4,17 @@ published: true
 routable: true
 visible: false
 lessons:
-    - slug: brainstorming-234-mathematical-tools
+    - slug: definir-234-outil-mathematique
       order: 3
 ---
 
+<!----------------------------------------------
+lessons:
+    - slug: brainstorming-234-mathematical-tools
+      order: 3
+----------------------------------------------->
+
+
 #### Brainstorming sur les outils mathématiques requis au niveau 4
 
 --------------------------------