Monday December 1, 2014 Write in your agenda: Daily Academic Vocabulary Informational Text/Main Idea & Supporting Details Homework: Read for 3o minutes and complete annotation log.

Informational Text In your interactive notebooks add Features of Informational Text in your table of contents. This will be page Features of Informational Textpage Main Ideapage Main Ideapage 56 After I read about Informational Texts we will complete the WEB as a class.

Main Idea We will be focusing on finding the main idea and supporting details of what we read this week. The main idea is the key concept expressed by a paragraph, passage, or story. Main ideas may be stated in a text or merely implied by the text. Supporting details explain or expand main idea. Recognizing main ideas helps the reader remember important information. Implied main ideas are inferred from an analysis of the details.

Lasers The informational texts in this book all have lasers as a subject. Lasers can focus on microscopic things that are millions of miles away. They can operate on tiny objects or on huge ones. What can you infer, or tell from this? Many writers use graphic and text features. Using these features helps them make their writing unique and interesting. Informational texts are filled with graphic and text features. Read Page 5 Lasers All Around Us

Shedding Light on Lasers Read page 6 Based on the title and illustrations, what do you predict this informational text might be about? Read pages 7-10 As a class we will complete a main idea chart form Shedding Light on Lasers.

Shedding Light on Lasers Intro: Page 6 Physicist Theodore Mainman and his assistant Irnee D’Haenens, created the first laser beam They made a machine with a tube and a light bulb with a ruby jewel inside. There were mirrors at each end. They turned on the light bulb, the ruby began to glow, and a red light shot out one end of the tube.

Shedding Light on Lasers The Energy of Lasers (Page 6-8) A laser’s light contains energy in the form of waves and particles. Light waves and particles created in a laser machine pack a lot of energy in a small area. Light is energy. It can act as waves or like a collection of particles. The particles hit a surface and bounce back. The light is the first laser excited Ruby Adams, which made red light. Mirrors reflected the light particles, making them line up together. They pass through the thin mirror as a laser beam.

Shedding Light on Lasers A Ver y Special Light(pages 8-10) Laser light is very different from regular light in its colors and waves. It is also different because it does not spread out. Regular light has many colors, each with its own wave sizes and shape. Each kind of laser has one color and waves of one shape and size. Laser light does not spread out like regular light. It is very thin and sharp, so it can cut through things.