diff --git a/README.md b/README.md
index 434fb2b..b888bbe 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ TA: Kenji Tojo
 
 ## Time
 
-Monday 2rd period, 10:25am - 12:10pm
+Monday 2nd period, 10:25am - 12:10pm
 
 
 ## Course Description
diff --git a/task03/README.md b/task03/README.md
index 42ef6a9..ad17ee0 100644
--- a/task03/README.md
+++ b/task03/README.md
@@ -46,7 +46,7 @@ Now you are ready to go!
 Compile the code with **out-of-source build** by making a new directory for build task02/build and compile inside that directory
 
 ``` bash
-$ cd task03  # you are in "acg-<username>/task02" directory
+$ cd task03  # you are in "acg-<username>/task03" directory
 $ mkdir build
 $ cd build
 $ cmake -DCMAKE_BUILD_TYPE=Release .. # configure Release mode for fast execution