diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.es.md
index 0ee005e9f..2673c8a5b 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/textbook.es.md
@@ -3,10 +3,13 @@ title: Brainstorming sur les outils mathématiques requis à chaque niveau
 published: true
 routable: true
 visible: false
+---
+
+<!----------------------------------------------
 lessons:
     - slug: brainstorming-g12-mathematical-tools
-      order: 1
----
+      order: 
+------------------------------------------------>
 
 ### Lluvia de ideas sobre las herramientas matemáticas necesarias en cada nivel