Update textbook.en.md

5 years ago · 3985a14a84
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--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/textbook.en.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/textbook.en.md
@ -3,9 +3,6 @@ title: Brainstorming on the mathematical tools required at each level
 published: true
 routable: true
 visible: false
-lessons:
-    - slug: brainstorming-123-mathematical-tools
-      order: 1
 ---

 #### Brainstorming on the mathematical tools required at level 1