Regarding your question if you are on the Facebook app in landscape mode press the tab which is 3 lines top left, the page will move right and all the different sections will become visible on the left. Select photos and a new page will load, press + tab top right and a menu box will appear to either take a photo or video, choose from library or create a new album. If you're doing a few photos select new album, a new album will load, select this and then press the + tab again and select photos either by taking photos or from library. It is a very slow process adding each photo and is much quicker from a computer. Hope this helps.
The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.