diff --git a/curriculum/challenges/english/blocks/review-loops-and-sequences/67f39b91583dec1e1eddbb9e.md b/curriculum/challenges/english/blocks/review-loops-and-sequences/67f39b91583dec1e1eddbb9e.md
index 67ca9b85447..b17c7b3b014 100644
--- a/curriculum/challenges/english/blocks/review-loops-and-sequences/67f39b91583dec1e1eddbb9e.md
+++ b/curriculum/challenges/english/blocks/review-loops-and-sequences/67f39b91583dec1e1eddbb9e.md
@@ -121,7 +121,7 @@ name, *rest = developer
 
 - If the number of variables on the left side of the assignment operator doesn't match the total number of items in the list, then you will receive a `ValueError`.
 
-- **Slicing Lists**: Slicing is the concept of accessing a portion of a list by using the slice operator `:`. To slice a list that starts at index `1` and ends at index `3`, you can use the following syntax:
+- **Slicing Lists**: Slicing is the concept of accessing a portion of a list by using the slice operator `:`. To slice a list that starts at index `1` and ends before index `3`, you can use the following syntax:
 
 ```python
 desserts = ['Cake', 'Cookies', 'Ice Cream', 'Pie']
diff --git a/curriculum/challenges/english/blocks/review-python/67f39e391c9b373069def02c.md b/curriculum/challenges/english/blocks/review-python/67f39e391c9b373069def02c.md
index bfa8cdf8c39..4bf916db267 100644
--- a/curriculum/challenges/english/blocks/review-python/67f39e391c9b373069def02c.md
+++ b/curriculum/challenges/english/blocks/review-python/67f39e391c9b373069def02c.md
@@ -959,7 +959,7 @@ name, *rest = developer
 
 - If the number of variables on the left side of the assignment operator doesn't match the total number of items in the list, then you will receive a `ValueError`.
 
-- **Slicing Lists**: Slicing is the concept of accessing a portion of a list by using the slice operator `:`. To slice a list that starts at index `1` and ends at index `3`, you can use the following syntax:
+- **Slicing Lists**: Slicing is the concept of accessing a portion of a list by using the slice operator `:`. To slice a list that starts at index `1` and ends before index `3`, you can use the following syntax:
 
 ```python
 desserts = ['Cake', 'Cookies', 'Ice Cream', 'Pie']