Since Moodle 2.9 is on the verge of release so most of the plugins are getting updated for the latest release compatibility. Realtime Quiz activity is a very popular activity module which is recently updated for Moodle 2.9.
Realtime quiz activity is a multiple-choice quiz designed for use in a face-to-face lesson. All students receives the same question at same time and specific time limit to answer it. After the time limit is expired the correct answer is shown with the number of students giving the correct answer thereby allowing each question to be discussed before moving on.
Realtime quiz activity is very actively maintained plugin among the Moodle plugins since 2007. Here is a small demo video for Moodle 1.9, Moodle 2.x is a bit different.
You can download the latest version of the realtime quiz activity module from this link: https://moodle.org/plugins/view/mod_realtimequiz
Thanks to Davo Smith for maintaining this useful module which has also got the featured plugin badge from MoodleHQ.