To record a video for a lecture using Tella, you first need to open the application on your device. Once the app is open, you can start recording by clicking on the 'Record' button. You can choose to record your screen, your face, or both. If you're recording a lecture, you might want to record your screen if you're using slides or other visual aids. You can also record your voice to provide commentary or explanation.

After you've finished recording, you can use Tella's editing features to enhance your video. You can trim unnecessary parts, add text or stickers, and adjust the volume of your voice. You can also add background music or sound effects if you want. The editing process is straightforward and intuitive, so you don't need any special skills to make your video look professional.

Finally, once you're satisfied with your video, you can share it with your audience. Tella allows you to share your video directly from the app to various platforms like YouTube, Facebook, and Instagram. You can also save your video to your device and share it via email or other messaging apps. With Tella, recording, editing, and sharing a video for a lecture is a simple and hassle-free process.