Primary source images show the development of the modern advertising industry and highlight what these ads reveal about American culture during the early 20th century compared to today.

Collection of photos and drawings depicting early California elite and maps of land use from which students can learn about the transformation of the California economy and its political and cultural development in the 1800s.

Primary source photos depicting what life was like out west and in California in the late 19th century.

Learners work in groups to develop an understanding of the size and shape of an object hidden beneath a plywood board, asking questions, testing their reasoning, and drawing conclusions, as scientists do. Students are never permitted to...

Paris in the early 1800s through the eyes of the author Honore de Balzac. Born in 1799, Balzac lived in Paris during a period of intense renovation. The guided tour provides many unique insights into the city's development as a major...

Otis Boykin (1920-1982 CE) is attributed with developing twenty-six electronic inventions, including devices for guided missiles, IBM computers and a control unit for an artificial heart stimulator.

This article discusses why and how to encourage the development of critical thinking skills for students conducting research on the Web. The author even presents an overview of a project that you could adapt to your class.

A collection of resources about almonds, with many educational pages and fact sheets available in languages other than English. Learn about the nutritional and health value of almonds, how they are grown, and their importance to...

These pages are from the Understanding Evolution website for teachers. They focus on homologous structures that organisms with common ancestors share.

This is a very good introduction to the role evolution plays in the development of biodiversity. These topics and extinction are explained with the use of colorful interactive pictures.

This page collects various areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional Euclidean geometry) meet some real-world applications.

Public media stations across California have banded together to package a comprehensive set of broadcast and digital resources for teachers, students, and families for at-home learning. Drawing on our most popular offerings to teachers...

This primary source set uses documents, photographs, and artwork to tell the story of the development and impact of Spanish missions in California during the Mission period.

CAG is an organization composed of "parents, educators, and community members" who wish to promote the needs and development of gifted children. The site provides information on grants and scholarships, access to the organization's...

The history of U.S. Route 40, including the development of predecessor roads such as colonial roads, the national road, pioneer trails, and various highways.

The history of U.S. Route 40, including the development of predecessor roads such as colonial roads, the national road, pioneer trails, and various highways.

The origin of the Internet can be traced back to the ARPANET project allowing scientists to share information between computers. As the popularity grew advancements were made in usability. This site provides a glimpse into the...

Lesson plan in which students place events in sequence, comparing their life to the history of the Earth.

A number of electrical, nuclear, solar, and wind science projects and energy activities are described on this page, with links to each activity.

A map of the United States and Pacific Ocean showing the development of American interests in the Pacific from the early exploration of Oregon Country in 1791 to the formal annexation of the Midway Islands and the Panama Strip in 1903....

This site from the University of California discusses the contributions and ideas of George Cuvier related to classification, evolution, and catastrophism.

This museum site from the University of California details the various characteristics of marsupials, or pouched mammals. Content also includes information about specific species.

An excellent page for viewing the life cycle and development of the amphibians.

This site from the University of California, Berkeley offers a biography of George Cuvier. Scientific ideas of George Cuvier are presented, such as those related to comparative anatomy, fossils, the idea of extinction, and others....