Los Angeles negotiated a sweet deal for Apple, promising to buy an iPad for every student at a cost that will eventually total at least $1 billion.

Forget the fact that the iPads are financed in large part by borrowing money from a 25-year construction bond issue, and that many schools will not get the repairs and upgrades they need.

Forget the fact that the iPads are loaded with Pearson content that is not yet complete.

Forget the fact that Los Angeles agreed to pay more for the iPads than their retail cost.

Forget the fact that the iPads will be obsolete in three years and the Pearson content is licensed for only three years.

Here is the question: How will Los Angeles pay for new iPads in three years? How can it afford to pay for the iPads it just agreed to buy? How will Los Angeles pay to repair its crumbling schools? Where will it find the money to reduce class sizes, some of which are staggering?

And behind it all is a lingering question: If the Common Core testing must be done online, and if every district in California is required to buy computers and establish the necessary bandwidth for Common Core testing, how many billions of dollars will be spent nationally to pay the cost of Common Core testing? If Los Angeles spent $1 billion, what will it cost for the nation?

One begins to understand why the tech corporations are so enthusiastic about Common Core.