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 1c7ae0afe..f021c82e1 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
@@ -8,6 +8,8 @@ lessons:
       order: 3
     - slug: define-234-mathematical-tools
       order: 1
+    - slug: define-2-mathematical-tools-polyglot
+      order: 3
 ---
 
 #### Define the mathematical tools required at level 2