diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/12.en/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/12.en/textbook.fr.md
index 409bc2f28..ff591d067 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/12.en/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/12.en/textbook.fr.md
@@ -3,12 +3,16 @@ title: Brainstorming on the mathematical tools required at each level
 published: true
 routable: true
 visible: false
+---
+
+<!----------------------------------------------------
 lessons:
     - slug: define-g12-mathematical-tools
       order: 2
     - slug: define-1-mathematical-tools-polyglot
       order: 3
----
+----------------------------------------------------->
+
 
 #### Define the mathematical tools required at level 1