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Hi Nigel,

Thank you so much for the response, I greatly appreciate it.  So to be a little more specific, our games are interactive HTML5 games that the child plays on our website.  So even though creating a subcategory based off brand does not apply, the same logic still applies for the site structure.  So if I am understanding you properly, we are ok keeping the games using the sub category "kindergarten"  and then targeting keywords using descriptive content for the games based off their attributes.

Site>Kindergarten Games>Vowel Game1  (attribute= letter sound)
Site>Kindergarten Games>Vowel Game 2 (attribute= identifying the vowels)
Site>Kindergarten Games>Vowel Game 3  (attribute= matching upper and lowercase vowels)
Site>Kindergarten Games>Vowel Game 4 (attribute= letter and image match)

My only concern though is whether the attributes (long tailed keywords) in the eyes of the search engines are considered semantic variations and still close enough to cause cannibalization.  Also, will they compete against each other for the broader, more heavily searched terms, like "vowel games."

Once again, thank you very much for your help.  It is very much appreciated when you are trying to learn a new skill to have experienced people share their knowledge.

My website is a collection of educational games for children.  We are currently in the process of doing all the onsite page optimization for the individual game pages (they currently have no title tags, meta descriptions, H1, etc.)

We created several different games to teach each particular skill.  For example, there are 4 different games children can play to learn vowels.  While offering several different games is good for the user, I am concerned as to how best to target a keyword for each particular game page without creating keyword cannibalization.

Being new to SEO, I am not sure how targeting on each page different variations of  related terms would affect SEO.  For example, if one page were to target the term "vowel games", and another the term "learning the vowels" are these keywords similar enough to cause keyword cannibalization?  If yes, would a proper solution be to use a canonical tag and designate one game as the "primary" game page for vowels?

Ideally, I realize that the best SEO solution would be to have a landing page created just for "vowel games."  Yet we created our landing pages based upon school level (preschool, kindergarten, first grade, etc) thinking of the user experience where a child only has to navigate to a single page to find all of the games for their age range.

I greatly appreciate any help in better understanding the best way to avoid any potential problems with cannibalization.