Anagrams and crosswords are well known but generally don't teach spelling.
The game targets a younger audience and is intended to teach spelling.
There are also more advanced programs that aim to teach spelling, reading, vocabulary and math.
High quality phonics work should be taught as "the prime approach" to teaching reading, writing, and spelling.
And anyway you're not meant to teach poetry when you're teaching spelling.
Lola's Alphabet Train teaches children letters and spelling of easy words.
Is it necessary or appropriate to teach spelling?
If you want a program to teach spelling, then it is important to pick one that supports the many different strategies to help children spell.
Word Shark not only teaches spelling, it is one of those programs that teachers instantly recognise as having educational integrity.
I think it's really a no-brainer that children should be taught spelling, punctuation and grammar.