In the modeling activities, each student may model objects in their interest and comfort zone. Large-scale assessments must use statistical techniques to identify potential bias among subgroups. The hydroponic curriculum assessments are used to improve curriculum to be interesting and non-threatening experience for a variety of learning styles and diverse groups. Assessment tasks must be appropriately modified to accommodate the needs of students with disabilities, learning disabilities, or limited proficiency of English. Visual aids including animations are used in increase comprehension.
Color is used as an aid for learning, and as a potential aid for some learning disabilities.
The HTML in the web pages and CD-ROM is modified to support vision impaired reading software. There is an ongoing effort to provide more assess through audio alternatives and motion video for the curriculum. Assessment tasks must be set in a variety of contexts, be engaging to students with different interests and experiences, and must not assume the perspectives or experience of a particular gender, racial or ethnic group. The curriculum includes units on many cultures such as Inca and Ancient Egyptian. The perspective of the curriculum is global and it has a global student base over the Internet.