Hi QuyenPaulTr565; Congrats. Welcome to our community and accecpt my warmest congratulations! The most important matters in teaching are: 1-Enjoy the teaching! 2-Consider you are teaching to children so say everything in depth and in simple language! 3-Try diffrent methods to delivery your concept. 4- Be expert in your field of teaching. For recording : 1- You can use something like this: http://www.ahujaradios.com/microphones/tie-clip-series/utp-30.html but i'm using external sound card for connecting my microphone. 2-For better quality of your voice you can use Audacity Software and use it's noise reduction filter so the result is great. 3- For capturing your screen you can use : BB flashback pro.It;s really great app. 5- In addition you can send your test video to Udemy review team they are great and will help you a lot and also you can post your video here so we can help you. 6-Also you can use Udemy help center with great topics in this link: https://teach.udemy.com/course-creation/ 7-Open My courses so there is few great Udemy free courses for how to create your course. 8- Don't worry anymore just focus on your recording and do your best. Remeber this: practice make perfect. Regards;
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