diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.fr.md
index eec136718..6fe72e1c2 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.fr.md
@@ -8,12 +8,6 @@ lessons:
       order: 1
 ---
 
-<!----------------------------------------------
-lessons:
-    - slug: brainstorming-g12-mathematical-tools
-      order: 1
------------------------------------------------>
-
 
 #### Définir les outils mathématiques requis à chaque niveau