Much Love for Multiplex: How 15 Characters Removed the Dread of Hybrid Instruction

Robert W. Walker

TLDR: The 15 Characters

multiplex: true

• technically, 14 characters and a space

The Problem(s)

• Screen shares on Zoom [and competitors] aren’t copy-pasteable.
• Latency issues and interference often require that in-person learners are in the physical but not the virtual meeting.
• Ultimately, this is an equal access issue.

The Solution is Really That Easy

multiplex: true

How Does it Work?

Two versions are rendered.

• {filename}.html A link to provide to users

• {filename}-speaker.html A link for the presenter

• The Details

Behind The Scenes

• They are linked together via a server provided by the Revealjs team.

• Or you can roll your own

tabsets

The interaction with multiplex and tabset doesn’t work perfectly¹

• Fragment
• Slide
• Column
• Column-Fragment

ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")

ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")

ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")

ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")

1. an observation, not a complaint

tabsets

Code

ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")

Fenced Code

```{r}
#| output-location: column-fragment
ggplot(airquality) + aes(Temp, Ozone) + geom_point() + geom_smooth(method = "loess")
```

This only scratches the surface

There are many other cool features:

• the chalkboard
• the canvas
• text animations
• the slide-tone from xaringanExtra
• zoom

Thanks

To the organizers for organizing and for the invitation.

And to the pigeon, for the palette.