diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/11.es/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/11.es/textbook.fr.md
index 702c7cecc..33c1426ca 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/11.es/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/20.n2/11.es/textbook.fr.md
@@ -8,6 +8,8 @@ lessons:
       order: 3
     - slug: definir-234-herramienta-matematica
       order: 1
+    - slug: define-2-mathematical-tools-polyglot
+      order: 2
 ---
 
 #### Lluvia de ideas sobre las herramientas matemáticas necesarias en el nivel 2