I have nothing against calculators. But I have taught some elementary and jr high school math classes in my old a feeble age. The "why can't we use calculators" and " what do I need to know this for" was a constant whinge I had to listen to and deal with.

Why I want you to know how to solve a quadratic equation isn't because that's what you are going to do for the rest of your life. But rather, I want you to see something like that in the far future and go "Oh, I know what this and that it isn't gibberish. And I can whip out that smart phone I got and google it to find the howto steps to solve it." And I want you to acquire the discipline to learn things. Besides, just knowing what 7x3 is, makes everything else so much easier to learn in math. That removes fear and stress point and builds the confidence to tackle more complex ideas.

I probably own more calculators than most here. So, I'm all for them. And I did always allow any student to use a calculator in class. I would just hand you a slide rule.....(and yes, I'm that old to have used them in class as a kid and I still own a couple). But, when I was teaching, I really wanted my students get their fingers dirty with the numbers themselves and to learn how those numbers work. While getting the correct answer is very important, as a teacher, I was perhaps less concerned with the correct answer and more concerned with HOW you got that answer. Because if you know what you did to get that answer, you are far more likely to get the right answer than the wrong answer.

In the end, I think education needs to be approached from the idea of making learning more fun. No matter the subject. Sadly, that's a very difficult trick for any teacher in the typical class room to accomplish.