#LearnOnTikTok Serendipitously, #LearnOnTikTok Seriously

If you are on TikTok, chances are high that you have come across videos featuring this audio template originally created by Kelly Hurst (@thelifebath), a TikToker from Newcastle, United Kingdom.1 Hurst’s video led to a life hack sensation on TikTok during the pandemic and has inspired the creation of hundreds of thousands of life hack meme videos, which range from tips on how to eff ortlessly separate egg yolks using garlic to threading needles with a toothbrush.2 The #LifeHacks memes are just one example of the increasingly popular trend of casual and playful knowledge sharing on TikTok that proliferated during the pandemic. Lockdowns worldwide resulted in a surge in the use of social media to share learning materials, especially on TikTok. Sports and food infl uencers have used TikTok to demonstrate workouts and cooking tutorials, helping people stay fi t and fed, and #MomsOnTikTok and #DadsOfTikTok have relied on the platform to collect and share tips on how to keep kids busy during the lockdown. Science educators are also important contributors to the trend of teaching through TikTok. With the closure of schools due to COVID-19, they turned to TikTok to deliver educational