A California school district decision to mandate a new curriculum requiring children as young as five years old to be taught about homosexual and transgender communities has prompted significant protest from parents who charged that a "political agenda" is pressing age-inappropriate material upon their children.

Second grade course material includes a children’s book about homosexual penguins trying to create a family. The book is titled "And Tango Makes Three."

Protesting parents in Alameda,

said the curriculum is definitely not age-appropriate and the issues are best learned at home. They were also angry they will not be allowed to keep their children out of the classes.

"I believe these children are far too young to be learning about what these issues mean," Alaina Stewart, an Alameda mother of three elementary school children, told Fox News. "These are adult issues and they are being thrust upon the children."