diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/12.en/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/12.en/textbook.fr.md
index 48ffba6d3..1c7ae0afe 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/12.en/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/12.en/textbook.fr.md
@@ -4,13 +4,13 @@ published: true
 routable: true
 visible: false
 lessons:
-    - slug: brainstorming-g12-mathematical-tools
+    - slug: define-g12-mathematical-tools
       order: 3
-    - slug: brainstorming-234-mathematical-tools
+    - slug: define-234-mathematical-tools
       order: 1
 ---
 
-#### Brainstorming on the mathematical tools required at level 2
+#### Define the mathematical tools required at level 2
 
 --------------------------------