Update textbook.fr.md

00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/30.en/textbook.fr.md

@@ -4,11 +4,11 @@ published: true
 routable: true
 visible: false
 lessons:
-    - slug: brainstorming-g12-mathematical-tools
+    - slug: define-g12-mathematical-tools
       order: 1
 ---
 
-### Brainstorming on the mathematical tools required at each level
+### Define the mathematical tools required at each level
 
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