Just got a card from a student who has been having a rough year. She was having a great deal of trouble until I started showing her how to really USE a calculator. (It's algebra and geometry not arithmetic, and she knows the algorithms just makes SO MANY little mistakes)
Since then she's really taken off. I find very few people who could benefit from calculators know how to use them effectively, and there is a lot of snootiness and stigma in the way of this happening.
1/