diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/instructions-for-levels/10.main/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/instructions-for-levels/10.main/textbook.en.md
new file mode 100644
index 000000000..83c477a28
--- /dev/null
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/instructions-for-levels/10.main/textbook.en.md
@@ -0,0 +1,11 @@
+---
+title: Brainstorming for the "Main" part
+published: true
+routable: true
+visible: false
+lessons:
+   - slug: brainstorming-3-parts
+     order: 1
+---
+
+#### Brainstorming for the "Main" part
\ No newline at end of file