Which of the following are common assistive technologies used for students with disabilities?

Text-to-speech software and screen readers are recognized as common assistive technologies for students with disabilities. These tools are specifically designed to enhance accessibility by converting text into spoken words, thus assisting students who have visual impairments or reading difficulties. Screen readers interpret and vocalize the content displayed on a computer or mobile device, enabling users to interact with technology in ways that are inclusive and supportive of their needs.

Other options, while valuable in educational settings, do not primarily function as assistive technologies tailored for students with disabilities. Standard projectors and overheads are general presentation tools, basic calculators and rulers serve standard educational purposes, and desktop computers without adaptations offer no specialized support for students requiring assistance. Therefore, text-to-speech software and screen readers stand out as essential tools aimed directly at facilitating learning for those with disabilities.