diff --git a/01.curriculum/02.mathematic/01.niv1/topic.en.md b/01.curriculum/02.mathematic/01.niv1/topic.en.md
new file mode 100644
index 000000000..9a79c635b
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+++ b/01.curriculum/02.mathematic/01.niv1/topic.en.md
@@ -0,0 +1,4 @@
+---
+title: plains
+---
+