diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/10.es/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/10.es/textbook.fr.md
index ecbe51bc1..cbc971b2d 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/10.es/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/10.es/textbook.fr.md
@@ -3,12 +3,16 @@ title: Brainstorming sur les outils mathématiques requis à chaque niveau
 published: true
 routable: true
 visible: false
+---
+
+<!---------------------------------
 lessons:
     - slug: definir-g12-herramienta-matematica
       order: 1
     - slug: define-g-mathematical-tools-polyglot
       order: 2
----
+---------------------------------->
+
 
 #### Definir las herramientas matemáticas necesarias en cada nivel