Additional resources at the TwHP site include a curriculum kit, a guide to creating TwHP materials based around users' local historic sites, and professional development information. The highlight of the site is a collection of over 40 experiments that young people can try at home, from bending light to marble madness to a tornado in a bottle. Users can also visit the Goodies sections for video clips, photos, and audio recordings of songs featured in the series. Additional features include a Teacher's Lounge, TV listings, and Question of the Week. Lesson plan contents include a synopsis, concepts, materials, time, teaching strategy, procedures, and handouts in .pdf format.
Some lessons are still under development.
The site also contains a Teaching Units section, although only one unit, on Human Evolution, is currently available. A consortium of the American Institute of Chemical Engineers, the American Society of Civil Engineers, and the American Society of Mechanical Engineers provides the Histories of Engineering Website. The goal of the site is to provide greater access to the historical documentation of engineering and technology. Major changes or accomplishments featured at the site include the changes in beverage containers, the Washington DC Metro Transit System, and the Trans-Alaska Pipeline. Although some parts of the site are under construction, it is still an excellent resource for learning about advances in engineering and technology since the 1960s.