Fourth graders practice adding rice cookies. In this mental math lesson, 4th graders get into groups and call out numbers to each other to add mentally. Students use the rice cookies to show the answer.

Students view a video clip on skyscrapers. They discover how columns support different size loads. They participate in activities and discuss their results.

This site from the Alien Travel Guide contains a picture of ionic columns as well as a brief description that distinguishes it from doric columns.