In an effort to make classrooms more gender-inclusive, teachers at a middle school in Lincoln, Nebraska were given teaching guidelines advising them not to use "gendered expressions" by calling students "boys and girls." The Lincoln Journal Star reports that the teachers have been advised to use more gender-neutral expressions like campers, readers, athletes or even purple penguins. The teaching handout called "12 easy steps on the way to gender inclusiveness" advised teachers to avoid separating students by gender, but instead by birth dates or preferences. For example, they could ask students whether they prefer skateboards or bikes, milk or juice,...