video lessons for Grade 4 to Grade 5 Mathematics

Hi I want someone to help me with creating video lessons for maths (Not more than 7-15 minutes per topic provided from Grade 4 - Grade 5). Topics will be provided. Example for Grade 4 you will produce a video on topics such as - Investigate and use the properties of odd and even numbers -Recognise, represent and order numbers to at least tens of thousands etc Because this project covers topics from Grade 4 to Grade 5, Grade 3 videos will be relatively simple. While quoting you must quote for a 10-minute average video lesson. What that means is that some topics will be less than 10 minutes recorded length and some will be over. I am concentrating on an average length here. I am assuming that one lesson will take 20 mins of recording effort, 10 mins to edit out errors, 60 mins to prepare what you have to say and what examples you will use. Your accent must be Good and easy to understand. Use of virtual whiteboard (such as [login to view URL]) to explain things, using examples is a must. A sample 30-60 seconds video of such work shall be provided to get a go ahead. The important bit is that there are multiple 10s of these lessons to be created, thus while quoting consider that. Regards, Jas