Technology hinders student learning mostly when it is used inappropriately. For instance, if students are typing an essay in Microsoft Word, they should be encouraged to review their work after they complete the assignment. Using spelling and grammar check are great resources, but students need to rely on their own skills as well. They still need to check their work.
In Math, they need to understand the actual concepts before they turn to calculators. Elementary students need to learn their times tables before they use the calculators. We all need to embrace technology, but use it appropriately.