I'm looking for a way to evaluate code in a incremental way in R markdown presentation. I don't need to use any specific format - it can be anything that works and is flexible (rpres, ion, revealjs, etc.)
I'll use these presentation in class for my students and would like to make them type code in their R Console first and then compare our outputs.
So far I came up with one solution using revealjs with slide_level
header
---
title: "Test presentation"
output: revealjs::revealjs_presentation
slide_level: 2
---
# Level 1 horizontal main slide
Some text
## Level 2 vertical slide with R Code
```{r eval=FALSE}
summary(cars)
```
## Level 2 vertical slide with R output
```{r echo=FALSE}
summary(cars)
```
Anything easier and less time consuming would be great.