Failure comes part and parcel with invention. It’s not optional. We understand that and believe in failing early and iterating until we get it right. When this process works, it means our failures are relatively small in size (most experiments can start small), and when we hit on something that is really working for customers, we double-down on it with hopes to turn it into an even bigger success. However, it’s not always as clean as that. Inventing is messy, and over time, it’s certain that we’ll fail at some big bets too.

Many things that teachers do in the classroom may raise the ire of parents or school board members or others. This includes teaching areas of science like evolution or assigning books that may be politically controversial. Now that teachers can be dismissed at will without adequate legal process, many teachers will either be afraid to undertake these activities or will simply choose to teach in other states.

Opinion: Public education under attack /

Evolution is the clear target there. It is the most subtle and clever way of masking it, to be sure.