Ivan's granddaughter would like to capture the screen of an iPad and add visual commentary. Leo says she wants to be a youtube star! Leo says the iPad can't do both. It does have a built-in screen recorder. Then you can record her with a camera and then edit the two together on a computer with a picture in picture option. Another option is an open source program called OBS Studio that can do it in real time on a computer. It's mostly used in making screencasts.
Steve is a swim coach and analyzes video of swimmers for training purposes. He then uses a telestrator to show them. He uses Kinovea, which is a free, open source product. Leo says that's really cool and is a great tool for coaching.
Brian does training and wants an off-the-shelf video streaming option with picture in picture to show his computer screen. Leo says that television switching hardware does it, but there's software that does it as well. There are a few options:
Russ is a math teacher and is working on a curriculum that would use technology to help kids learn. He wants to create online video of lectures, and have the kids do their homework in class where they can get help from him. It's called “flipping the classroom”.