diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.es.md
index 833f1f7dd..608d665bf 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/textbook.es.md
@@ -9,7 +9,7 @@ lessons:
 ---
 
 
-#### Lluvia de ideas sobre las herramientas matemáticas necesarias en el nivel 3
+#### Definir las herramientas matemáticas necesarias en el nivel 3
 
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