diff --git a/iteration.Rmd b/iteration.Rmd
index 70583e1..ded5952 100644
--- a/iteration.Rmd
+++ b/iteration.Rmd
@@ -509,7 +509,7 @@ Never feel bad about using a for loop instead of a function. The map functions a
 
 ### Shortcuts
 
-There are a few shortcuts that you can use with `.f` in order to save a little typing. Imagine you want to fit a linear model to each group in a dataset. The following toy example splits the up the `mtcars` dataset in to three pieces (one for each value of cylinder) and fits the same linear model to each piece:  
+There are a few shortcuts that you can use with `.f` in order to save a little typing. Imagine you want to fit a linear model to each group in a dataset. The following toy example splits up the `mtcars` dataset into three pieces (one for each value of cylinder) and fits the same linear model to each piece:  
 
 ```{r}
 models <- mtcars %>%