Your screencast is a review of the work that you created in your google map. It should be 2-3 minutes long and go over the highlights of your map. You can use WeVideo (this is the tool I recommend), screencastify, Hippo Video or any other screencasting tool that you have available to you. Some student prefer to do this part of the project at home to help create a clearer audio.
You should include information that you found interesting or important. Include your favorite things that you learned about while doing this project. Open some of your added sites and share the images you added while discussing that location (2-3 of your pinned locations). You should not be reading word for word what you have written on your map. You should write a script to help keep yourself from losing your place while recording. Make sure it sounds good (meaning feel free to do more than one screencast until you have a great one) before submitting. Long pauses, reading like a robot, and off topic conversation are all things that you want to avoid.
You should include information that you found interesting or important. Include your favorite things that you learned about while doing this project. Open some of your added sites and share the images you added while discussing that location (2-3 of your pinned locations). You should not be reading word for word what you have written on your map. You should write a script to help keep yourself from losing your place while recording. Make sure it sounds good (meaning feel free to do more than one screencast until you have a great one) before submitting. Long pauses, reading like a robot, and off topic conversation are all things that you want to avoid.