That Catholic School Board has zero backbone.  Simply say it is at odds with Catholic teaching and hence will not be shown at our Catholic schools.  It is absolutely at odds with Catholic teaching.  It "attempts to teach children that gender is fluid and can be chosen, rather than a biological fact and a gift from God" (https://cruxnow.com/commentary/2016/08/09/pediatricians-back-pope-francis-gender-theory/).  Catholic teaching is very clear on this through the logical consequences of scripture and tradition (as with all its teachings) and in this case science as well.