Some of the Gods/Goddesses from Slavic Paganism

Here are just some of the Gods & Goddesses from Slavic Paganism. We have many Slavic people living here in the UK, but their religions are not spoken about in the schools where their children are attending. My own sister is a part of Slavic culture. We are yet to see this celebrated, and respected as part of our religious studies though. We get told that they just can't fit them all in, but I don't see any pagan religions on there?