Case Closed Exit TicketTop Secret Case Closed: Exit Ticket Agent Name Date Final Evidence File: Ocean Investigation "The Great Barrier Reef is facing a serious threat from rising ocean temperatures. When the water gets too warm, the colorful coral begins to turn white, a process known as bleaching. This change makes the coral weak and can eventually lead to the death of large sections of the reef. Scientists are working hard to find ways to cool the water and protect the thousands of sea creatures that call the reef home." 1. Identify the TOPIC (1-2 words) 2. State the MAIN IDEA (Complete Sentence) 3. List THREE Supporting Details (Evidence from text) 1 2 3 Detective Confidence Level: Novice Specialist Master
Idea Detectives SlidesIdea Detectives Cracking the Code of Informational Text The Investigation Goals The Topic The broad subject. "What is this text about in one or two words?" Main Idea The author's point. "What is the most important message about the topic?" Details The evidence. "What facts or examples prove the main idea is true?" The Table Analogy Think of the Main Idea as the tabletop. It's the big surface that holds everything together. The Supporting Details are the legs. Without them, the tabletop (Main Idea) would collapse. They provide the support and proof. Main Idea Detail Detail Detail Live Investigation E-Sports: Just a Game? Let's look at our first case file together. We are looking for the Topic, the Main Idea, and 3 Specific Details. Detective Strategy Scan the Perimeters Look at titles, headings, and the first and last sentences. Authors often place the main idea there. Follow the Patterns Look for repeated words. If the author says "scholarships," "money," "brands," and "prize," the main idea is probably about the business/money side of the topic. The "So What?" Test Ask yourself: "So what is the author trying to prove about this topic?" The answer is your main idea. Case Closed: Summary Key Components Topic: The broad subject. Main Idea: The author's point. Details: The evidence (the table legs). Investigation Method Scan first & last sentences. Track repeated words & patterns. Always ask the "So What?" question. Case Solved!
Clue Hunter WorksheetCase Brief: The Idea Detectives Classification: Evidence File #1 Agent Name Date Investigation Protocol The Topic The broad subject (1-2 words). The Main Idea The primary point (complete sentence). Supporting Details Evidence that supports the main idea. Evidence File #1 The E-Sports Explosion "Competitive gaming, or e-sports, has grown from a small hobby into a global phenomenon. Today, professional gamers play in front of sold-out arenas filled with thousands of screaming fans, while millions more watch online from home. Major tournaments offer prize pools worth millions of dollars, rivaling traditional sports like golf or tennis. Big-name brands now pay top players for endorsements, and some universities even offer scholarships for gaming talent. It is no longer just a pastime; e-sports is a massive, multi-billion dollar industry." Identify the Topic State the Main Idea (Complete Sentence) List 3 Supporting Details (Evidence) 1 2 3 Case Brief: The Idea Detectives Classification: Evidence File #2 Agent Name Date Evidence File #2 The Secret Language of Sneakers "For 'sneakerheads,' shoes are far more than just something to wear on your feet; they are collectible pieces of art and status symbols. Enthusiasts spend hours researching 'release dates' and waiting in long lines to buy limited-edition sneakers that might never be restocked. These collectors often keep their shoes in pristine, unworn condition inside clear display boxes to preserve their value. Some rare pairs can even sell for thousands of dollars on the resale market, turning a passion for footwear into a serious investment. In this community, the right pair of kicks tells the world exactly who you are." Identify the Topic State the Main Idea (Complete Sentence) List 3 Supporting Details (Evidence) 1 2 3 Case Brief: The Idea Detectives Classification: Evidence File #3 Agent Name Date Evidence File #3 The Power of Pixels "Modern movies rely on a blend of practical effects and computer-generated imagery (CGI) to transport audiences to impossible worlds. While classic films used puppets and scale models, today's blockbusters often use digital motion capture to turn human actors into incredible creatures or superheroes. However, many directors still use real explosions and hand-built sets because they look more realistic on camera than digital ones. By combining these digital tools with physical craftsmanship, filmmakers can create breathtaking stories that look and feel completely real."
Case Cracked Answer KeyCase Cracked: Answer Key Resource: Evidence File #1 Solved Teacher Reference File #1 The E-Sports Explosion Topic E-sports / Competitive Gaming Main Idea E-sports has evolved from a simple hobby into a massive, multi-billion dollar professional industry. Supporting Details (Evidence) Professional gamers play in sold-out arenas with thousands of fans. Tournaments offer prize pools worth millions of dollars. Universities offer scholarships for gaming talent, treating it like a sport. Case Cracked: Answer Key Resource: Evidence File #2 Solved Teacher Reference File #2 The Secret Language of Sneakers Topic Sneaker Collecting / Sneakerheads Main Idea For collectors, sneakers are valuable status symbols and long-term investments rather than just items to wear. Supporting Details (Evidence) Collectors keep shoes in pristine condition in display boxes to preserve value. Rare pairs can sell for thousands of dollars on the resale market. Enthusiasts research release dates and wait in long lines for limited editions. Case Cracked: Answer Key Resource: Evidence File #3 Solved Teacher Reference File #3 The Power of Pixels Topic Special Effects / Movie Making Main Idea Filmmakers combine digital technology (CGI) with physical craftsmanship to create realistic and immersive movie worlds. Supporting Details (Evidence) Motion capture technology allows digital characters to be played by human actors. Some directors still use real explosions and hand-built sets for better realism. The combination of digital tools and physical skills makes stories feel real. Reflection Rubric Students should explain that the topic is the broad subject and the main idea is the specific point being made about that subject. They should recognize that details must directly link back to and support the main idea.
