1. Teacher Guide This lesson is designed to teach kids to ask a critical thinking question that you can’t just put into a search box to solve. To do that, we encourage them with smaller questions that search can help them answer. Make sure that you read the notes for each slide: they not only give you teaching tips but also provide answers and hints so you can help the kids if they are having trouble. Remember, you can always send feedback to the Bing in the Classroom team at BingInTheClassroom@Microsoft.com. You can learn more about the program at bing.com/classroom and follow the daily lessons on our Partners In Learning site. BingInTheClassroom@Microsoft.combing.com/classroomPartners In Learning site Want to extend today’s lesson? Consider using Skype in the Classroom to arrange for your class to chat with another class in today’s location. And if you are using Windows 8, you can also use the Bing apps to learn more about this location and topic; the Travel and News apps in particular make great teaching tools.Skype in the Classroom Nell Bang-Jensen is a teacher and theater artist living in Philadelphia, PA. Her passion for arts education has led her to a variety of roles including developing curriculum for Philadelphia Young Playwrights and teaching at numerous theaters and schools around the city. She works with playwrights from ages four to ninety on developing new work and is especially interested in alternative literacies and theater for social change. A graduate of Swarthmore College, she currently works in the Artistic Department of the Wilma Theater and, in addition to teaching, is a freelance actor and dramaturg. In 2011, Nell was named a Thomas J. Watson Fellow and spent her fellowship year traveling to seven countries studying how people get their names. This lesson is designed to teach the Common Core State Standard: Operations & Algebraic Thinking CCSS.Math.Content.4.OA.A.1CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations. CCSS.Math.Content.4.OA.A.2CCSS.Math.Content.4.OA.A.2 Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison. 1 CCSS.Math.Content.4.OA.A.3CCSS.Math.Content.4.OA.A.3 Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

2. Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels? © REX/Design Pics Inc

3. These metal letters and symbols are the “type” that comprise the basic components of a moveable type printing press. One of the earliest movable type printing presses in the Western world created the Gutenberg Bible in the 1450s. Rectangular blocks of metal type in the shape of letters similar to these were carefully placed by hand and coated with ink to spell out in Latin each word in each verse on the page. We’ve come a long way since then, with digital devices that fit in our pockets and deliver far more information than printing innovator Johannes Gutenberg could have typeset in his lifetime. Still, it’s fun to challenge our brains with letters and words, and few brain- teasing contests inspire more dread and victorious satisfaction than spelling bees. This week, the Scripps National Spelling Bee takes over Washington D.C., and students competing will be sorting out letters in their heads, laying them out like the block type of an old printing press. Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

4. 1 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a second grader or third grader? 2 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fourth grader? 3 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fifth grader? 4 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a sixth grader? 5 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a seventh grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

5. 5 Minutes Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

6. 1 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a second grader or third grader? 2 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fourth grader? 3 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fifth grader? 4 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a sixth grader? 5 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a seventh grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

7. 1 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a second grader or third grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

8. 2 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fourth grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

9. 3 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a fifth grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

10. 4 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a sixth grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?

11. 5 Web Search/ Thinking How much more likely is it that an eighth grader will win the spelling bee than a seventh grader? Most of the students in the Scripps National Spelling Bee this year are in eighth grade. How much more likely is it that an eighth grader will win than a student from each of the other grade levels?