5. Problem/solution Imrw this pattern, the main idea names a problem and indicates that one more solutions. The paragraph always consists of two parts: 1) a statement and 2) a description and explanation of how it was solved. There are often no signal words for the details. Key words/phrases in the main idea: situation, trouble, crisis, dilemma or issue. In the body of the paragraph, key words include: solve, solution, resolved. Read the paragraph and the information below. Then underline the signal words in the paragraph. Beginning in the 1600s, astronomers had realized that their telescopes had serious limits. They had managed to build stronger and better telescopes, but no matter how strong the new telescopes were, they were less than satisfactory. The astronomers were able to view objects only when the objects were in view of Earth. At the same time, however, Earth's light and atmosphere made it difficult to see many heavenly objects. Thanks to the Hubble Telescope, this has been solved, because the Hubble is not just a telescope. It is a digital camera on a satellite that travels about 370 miles (600 km) above Earth, making a complete orbit every ninty-seven minutes. Since 1990, Hubble has been able to take digital pictures of planets, galaxies, comets, and more, and these are sent back to Hubble headquarters for scientists to study Topic: Telescopes Main idea Telescopes were limited, but the new Hubble telescope has solved the problem Key words in the main idea problem, solved Supporting facts and ideas Problem Telescopes could view objects only when they were in view of Earth. Solution: A new kind of telescope Comprehension Skills 44