diff --git a/docs/backend_architecture/content/concepts_and_definitions.rst b/docs/backend_architecture/content/concepts_and_definitions.rst
index 33d83b2b5ce..12e545a0912 100644
--- a/docs/backend_architecture/content/concepts_and_definitions.rst
+++ b/docs/backend_architecture/content/concepts_and_definitions.rst
@@ -4,12 +4,12 @@ Concepts and Definitions
 ContentNode
 -----------
 
-High level abstraction for prepresenting different content kinds, such as Topic, Video, Audio, Exercise, Document, and can be easily extended to support new content kinds. With multiple ContentNode objects, it supports grouping, arranging them in tree structure, and symmetric and asymmetric relationship between two ContentNode objects.
+High-level abstraction for representing different content kinds, such as Topic, Video, Audio, Exercise, and Document, and can be easily extended to support new content kinds. With multiple ContentNode objects, it supports grouping, arranging them in tree structure, and symmetric and asymmetric relationship between two ContentNode objects.
 
 File
 ----
 
-Model that stores details about a source file such the language, size, format, and location.
+Model that stores details about a source file such as the language, size, format, and location.
 
 ContentDB diagram
 -----------------