0covercover.xhtmlFUN AND GAMES FIREWORKS Multiplication Jay Hwangcover1page0001page0001.xhtml22page0002page0002.xhtmlFUN AND GAMES FIREWORKS Multiplication33page0003page0003.xhtml44page0004page0004.xhtmlTable of Contents Boom! Bang! Bored? 4 A Bright Idea 6 Welcome to Montral 12 La Ronde 14 Meet the Competitors 16 It's Showtime 22 The Grand Finale 26 Problem Solving 28 Glossary 30 Index 31 Answer Key 3255page0005page0005.xhtmlBoom! Bang! Bored? Bang! Whoosh! Pop! Stella has a gigantic smile on her face as the glow from an orange burst erupts in the night sky. Hiss! Snap! The sound of a silver whistling whirl delights Stella's ears. Boom! Silence. Bang! A giant, blue flower explodes in the air. Stella cheers along with the crowd. Her father's fireworks sure are impressive. Behind the scenes, though, away from the crowd, Stella knows that her father is bored and unhappy. Stella's father is a pyrotechnician. He sets off fireworks for a living, and it is his job to dazzle audiences with his firework show. But lately, Stella's father has become bored. He feels that he knows everything about fireworks. He can identify the exact proportion of ingredients needed to make any type of explosion. Barium is used for green fireworks and lithium for red fireworks. Shells loaded with many small, round pieces of metal called stars will create one large explosion. Adding more black powder to the lift charge at the bottom part of the firework will propel it higher into the sky, and changing the length of the fuse will detonate the firework at precisely the right time. To him, fireworks are simply careful calculations and measurements, which achieve a consistent, predictable result in color and sound. He feels that he has nothing left to learn. Pyrotechnicians prepare for a firework show.66page0006page0006.xhtmlLET'S EXPLORE MATH Professional pyrotechnicians plan for 2 hours to produce 1 minute of a firework show. 1. How many minutes of planning time is this? 2. How many minutes does it take to plan a 30 minute show?77page0007page0007.xhtmlA Bright Idea Stella decides to help her father love fireworks again. She remembers a story he once told her. He was a young boy celebrating Independence Day with his family. He watched in amazement as a giant red star popped. He gasped as a white pinwheel fizzled. Those glittering explosions inspired him. Suddenly, Stella has an idea. She remembers her father telling her about an event called the Fireworks Festival of Montral. There, people compete to make the greatest firework displays in the world. Surely, this competition would help reignite her father's passion for fireworks. A child celebrates while watching fireworks.88page0008page0008.xhtmlChrysanthemum fireworks light the sky over Montral.99page0009page0009.xhtmlOnce the excitement wears off, Stella realizes she hasn't thought her plan through. How can she take her father to a festival in Canada? She doesn't have money for plane tickets, and she can't pay for a hotel. Stella realizes she has a new problem to solve. Stella decides to search the festival's website for information. She quickly learns that the city of Montral is holding a poetry contest to promote the festival. The winner will be awarded airfare, a hotel stay, and two free tickets to the festival. "A poem about fireworks? " Stella wonders aloud. It will be challenging, but she is determined! For the rest of the night, Stella sits on her bed thinking about how fireworks make her feel. Stella writes and revises. Finally, she's ready to submit. She takes a deep breath and presses the send button. Montral Festival website1010page0010page0010.xhtml
My Father's Fireworks He sends round packages of light into the night sky where they burst at the seams into dazzling arrays of colors, which adults and children see for miles and miles. "My father's fireworks, " I proudly exclaim, "will bring happiness and joy for many years to come! "1111page0011page0011.xhtmlWeeks pass as Stella waits for the winner of the contest to be announced. Every day, she checks her email and mailbox for a response. One day, an envelope arrives. The golden envelope with the stamp on it stands out in the stack of mail. Stella opens it and eagerly reads the card inside.1212page0012page0012.xhtmlInside the envelope are two tickets to Montral. She runs to her father and gives him the tickets. His eyes light up when he hears what Stella has done for him. Then, with regret, her father says, "Unfortunately, I have too much work to do to go to Montral. I want you and your mom to go and enjoy the festival. When you come back, you can tell me all about the fireworks. " Stella is disappointed but tells her father that she will do her best to enjoy the show.
Bonjour, Stella! We absolutely love your poem about fireworks! We cordially extend an invitation to you and a guest to the International Montr?al Fireworks Festival. Please join us for the best firework displays the world has to offer. The city of Montral and our friendly mascot await your arrival! Au revoir! Montral1313page0013page0013.xhtmlWelcome to Montr?al Stella and her mom take a shuttle to the airport. They check their bags and wait for their flight. The flight is pleasant as Stella gazes out the window at the small cities below. She wonders whether fireworks see the world in the same way. Before she knows it, the plane is landing in Montral.1414page0014page0014.xhtmlVisiting a new place is exciting, but Stella remembers that she has a mission. Stella and her mom look for the friendly mascot to meet them at baggage claim. It doesn't take long for them to see the bright orange mascot. The furry creature approaches them and musically exclaims, "Stella! Fantastic! You're here! " The mayor of Montral appears from behind the mascot. "On behalf of the city of Montral, I am honored to welcome the Fireworks Festival's Poet, Stella! " announces the mayor. People in the airport cheer and clap for her. Stella's mom and the mayor shake hands. The mascot chimes in, "My name is Youppi, but you can call me Yippee. I'll be your guide for the Fireworks Festival! Let's go to La Ronde! " Youppi is the mascot of the Montral Canadiens hockey team. LET'S EXPLORE MATH Montral is about 4, 588 kilometers away from Mockingbird Lane. Complete the area model to show how far Stella and her Mom will travel roundtrip. 4, 588 2 = __________ 2 4, 000 + 500 + 80 +81515page0015page0015.xhtmlLa Ronde La Ronde is the second-largest amusement park in Canada. It has over 40 roller coasters, 2, 400 vertical feet (732 vertical meters) of railway, and 20 restaurants. The Fireworks Festival is held inside La Ronde. Stella and her mom are amazed at all the fun the amusement park has to offer. Yippee shows them around the entire park and goes on some of the rides with them. They share a lot of delicious foods, such as funnel cake and poutine. Stella is having so much fun. Then, she sees a flyer for the Fireworks Festival and is quickly reminded of the reason she is there : the fireworks show! There is no time for clowning around. Her father is counting on her to tell him all about the amazing fireworks. "Yippee, may we please go to the Fireworks Festival? " Stella asks. "Of course! " shouts Yippee. The group gets on a miniature train. Yippee tells the conductor to head straight for the Fireworks Festival preparation grounds. The conductor winks and tugs his hat. His small train takes off at its maximum speed of 2 miles per hour (3 kilometers per hour). Along the way, Stella, her mom, and Yippee make a few stops to take photos. LET'S EXPLORE MATH The small train at La Ronde travels about 3 kilometers per hour. One of the roller coasters has a maximum speed of 96 kilometers per hour. How many times as fast is the roller coaster than the small train?1616page0016page0016.xhtmlPoutine is made of French fries, cheese curds, and gravy.1717page0017page0017.xhtmlMeet the Competitors The train chugs its way toward its next stop. Stella sees a group of people busily working. On their shirts, they have red leaves. The maple leaf is the emblem of Canada. Yippee announces to the Canadian team, "Our poet has arrived! " The Canadian team members shake Stella's hand and warmly welcome her and her mom to the event. They tell Stella how much they love her poem. The team won the Fireworks Festival last year, and they received a standing ovation from the judges and the crowd. Stella feels that the Canadian team members will have words to inspire her father. She asks, "What do fireworks mean to you? " Stella's new friends think about the question. Then, they discuss their responses as a team. Finally, they agree upon an answer. The team leader responds, "Fireworks are the tools with which we express who we are as individuals, a team, a country, and as humankind. " Stella repeats his words to herself. She feels a deep connection to the team's answer. She thinks it will inspire her father. She will remember to tell him when she gets home.1818page0018page0018.xhtmlCanadian team members1919page0019page0019.xhtmlthe Spanish team2020page0020page0020.xhtmlMom, Stella, and Yippee board the train again. As they make their way around Dolphin Lake, Stella looks for the next country's team. Soon, Stella sees another flag. This flag has red and yellow stripes and a coat of arms on the left side the flag of Spain. As the train comes to a stop, Yippee jumps out and greets the Spanish team, "Hola, el grupo de Espaa! " The Spanish team cheers Stella's arrival and congratulates her on winning the poetry contest. The Spanish team won second place the last three years. They hope to win first place this year. Stella asks the Spanish team the same question she asked the last group, "Why do you love fireworks? " The people think carefully before they answer. The team leader tells Stella, "To us, fireworks represent a language that everyone knows. We make our fireworks using our knowledge of chemistry and mathematics. But people understand their meaning from deep within their hearts. " Stella will remember to pass along these meaningful words to her father.2121page0021page0021.xhtml"Time to get moving! " the conductor yells. Stella says good-bye to the Spanish team and wishes them luck. The train quickly approaches the end of its tracks. Stella and her mom see another flag. This flag is red with yellow stars. The yellow stars remind Stella of fireworks. It is the flag of China. The train comes to a stop. The Chinese team greets Stella, her mom, and Yippee. They tell Stella that fireworks are a big part of Chinese culture. Many historians believe that fireworks were invented there. China makes and sells more fireworks than any other country in the world. the Chinese team2222page0022page0022.xhtmlStella asks them for their thoughts about fireworks. "What is the secret to making the best fireworks? " The team members talk amongst themselves, and the eldest member answers Stella's question. "The secret to making the best fireworks is progress. Learn from those who know more than you, and teach those who know less than you. Fireworks have evolved from simple firecrackers to what they are now because of this progress. " Stella feels a sense of pride as she realizes that she is taking part in the evolution of future fireworks. LET'S EXPLORE MATH Each country's team typically has 17 members. Suppose that 6 teams participate in the festival. How many team members are there altogether?2323page0023page0023.xhtmlIt's Showtime! Back on the train, they make their way to the final stop. In about an hour, Stella will see the greatest fireworks display in the world. She feels a strong appreciation for all the hard work that goes into putting on the show. She can't wait to see what the Canadian team has planned. She looks forward to the artistry of the Spanish team's show. She hopes to learn from the techniques that the Chinese team will use. She thinks about her father and how much work he puts into each of his firework displays. She hopes that her experience will soon give him the answers he needs to once again feel connected to his work. The sun sets, and the sky darkens into a black canvas. The stage is set for the Fireworks Festival. Huge crowds begin to fill every part of La Ronde. People search high and low for places to view the fireworks. People in the city even settle on rooftops and in trees to see the show. Around the lake, teams run back and forth as they make final preparations. Yippee guides Stella and her mom to their seats. Stella anxiously awaits the start of the show.2424page0024page0024.xhtmlLET'S EXPLORE MATH A ticket for a reserved seat at the festival costs about 54 Canadian dollars. Suppose that 36 people in a tour group want reserved seats. Use partial products to show how much their tickets cost altogether. A crowd waits anxiously for the sky to darken so the fireworks show can begin.2525page0025page0025.xhtmlSuddenly, music starts to fill the air at La Ronde. Tiny red flares flicker back and forth over the lake. Then, a barrage of white comets fan out like a tidal wave. A single shell is launched high into the sky before it bursts into a giant purple-and-red peony. The music picks up speed. Before Stella knows it, whistling whirls, bees, and rainbow rosettes fly into the sky in a frenzy. Large flower shapes pulsate green to blue to red while willows fall like waterfalls in the sky below. The displays bring the sky to life as sound and color dance together in harmony. Stella lets out many oohs and aahs, and Yippee cries out "Yippee! " Behind the scenes, all the teams look up in admiration. The long hours of hard work are finally paying off. Every measured ingredient, timed detonation, and thoughtful design is perfectly paying off. The night sky is filled with colorful fire, and the crowds appreciate the teams' hard work. The fireworks spread happiness and joy for miles and miles. As they watch, the teams already know that they can't wait to do it all again next year. Red firework fountains spray light up from the ground.2626page0026page0026.xhtmlWillow fireworks shower the Montral sky. LET'S EXPLORE MATH Firework shows in other cities are not as huge as the Montral festival. Suppose a city presents a 23-minute show. There are 152 firework effects each minute. How many effects are there in the show altogether?2727page0027page0027.xhtmlThe Grand Finale After the last firework fades, Stella sits in a daze. It was beautiful. The judges tally their final scores for each of the competitors. Soon, the champion team will be named. In Stella's mind, every competitor deserves to be a world champion. She hopes that one day she will be as good at crafting and launching fireworks as they are. Then, Stella remembers the final step of her important mission. She has to go home to tell her father about the firework show. She will also tell him about the inspirational, passionate, and wise words the teams shared with her. Montral International Fireworks Festival2828page0028page0028.xhtmlStella thinks that the fireworks would surely have inspired her father. If only he had been here to see them. Just then, Yippee removes the head of his costume. Stella's jaw drops. Underneath the fuzzy orange costume is her father, grinning from ear to ear. "I had no idea! " exclaims Stella as she turns to her mom. "Dad wanted to surprise you, sweetie, " says her mom. "Thank you for reminding me about my love and passion for fireworks, " Stella's father says as he gives Stella a big hug.2929page0029page0029.xhtmlProblem Solving Fireworks come in many different sizes. So do firework shows. Shows run for varying lengths of time, and the number of firework shells that explode is related to the number of minutes. Imagine that you are a pyrotechnician for a firework company. Complete the table so that the other members of your team know the details of each type of show offered by the company.3030page0030page0030.xhtml
