Investigate. Learn. Here are some characters you are going to meet throughout the book. Practice. The Four-Step Plan Patterns...

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1 coonn connected.mcgraw-hill.com Investigate Animations Vocabulary The Four-Step Plan Math Songs Patterns Multilingual eglossary Learn Personal Tutor Virtual Manipulatives Geometric Figures Here are some characters you are going to meet throughout the book. Audio Foldables Practice Self-Check Practice egames Worksheets Assessment 2 Start Smart Alyssa My friends and I like to ride our bikes. Sometimes we ride to the park to play baseball. Carlos I love animals! I have two dogs and a hamster. Monkeys are my favorite wild animals.

2 Eva My mom says I should be an engineer when I grow up because I like to build things. Jacob I like to visit my grandma. She helped me take the training wheels off my bike when I was little. Jamie I like to play basketball. I am the captain of our team. Kendra I like to go hiking. I taught my friend, Morgan, how to skip rocks. Kim Friends are the best! I like to skateboard with my best friend, Jacob. Luke I enjoy playing sports, especially baseball. I play shortstop. Morgan I enjoy hanging out with my family. We spend most of our free time at the swimming pool. Nate Cooking is so much fun. My favorite foods to make are pizza and spaghetti with meatballs. Let s Get Started! We re going to review a little before we begin Chapter 1. Start Smart 3

3 Math, Math, Everywhere! A four-square court can measure as little as 16 feet or as much as 24 feet on each side. Reinforcement of GLE Apply and adapt a variety of appropriate strategies to problem solving, including estimation, and reasonableness of the solution. FPO Bar Diagram RECESS Mrs. Landeg s third grade class had a four-square tournament during recess. Four students played on each court. If there were 5 courts, how many students played at the same time? Understand A total of played on each court. There were 5 courts. Plan Use a bar diagram to find how many students played at the same time.? students in all Court 1 Court 2 Court 3 Court 4 Court 5 4 Start Smart

4 Solve Use a bar diagram to solve the problem. 20 students? students in all Court 1 Court 2 Court 3 Court 4 Court 5 Use repeated addition to find the total number of students = 20 students So, 20 students played four-square at the same time. Check Does your answer make sense? If not, solve the problem another way. Use the four-step plan and a bar diagram to solve each problem. See Example 1 1. Rob, Nina, and Megan each have 5 stickers. How many stickers do they have in all? 2. Yoko bought 2 tickets for the musical. Each ticket cost $7. How much did she spend altogether?? stickers in all 5 stickers 5 stickers 5 stickers Rob Nina Megan? $ spent altogether $7 $7 Ticket 1 Ticket 2 3. E WRITE MATH Write a real-world problem about a game you like to play during recess. Then ask a classmate to solve. Lesson 1 Start Smart 5

5 Skip Counting Savings Do you get a weekly allowance? Reinforcement of GLE Develop pattern recognition. FPO Skip Counting MONEY Kevin is saving his allowance. He gets $5 a week. How much money will he have after 6 weeks? Each week Kevin has $5 more Kevin s Savings than the week before. The pattern shows that 5 is added to the number that came before. You can add 5 or count by 5s. Week $5, $10, $15, $20, $25, $30 Total Saved 1 $5 2 $10 3 $15 4 $20 5 $25 6 So, Kevin will have $30 after 6 weeks. 6 Start Smart

6 Identify a pattern. See Example , 16, 19, 22, , 78, 82, 86, , 86, 80, 74, , 66, 71, 76, 81 Identify a pattern. Find the missing number. See Example , 16, 20, 24, 6. 50,, 40, 35, , 28, 31,, , 68, 48, 28, 11. A crab has 10 legs. What is the total number of legs for 5 crabs? Number of Crabs Crab Legs Total Legs Emma bought a lock for her locker at the gym. She sees a pattern in the numbers on the lock. If the pattern continues, what would be the next number? 15. This week, Kimi is going to pack her lunch for school every other day starting Monday. Is she going to pack her lunch on Thursday? Explain , 49,, 65, , 37, 42,, Justin made bows to put on his 6 kites. He put 4 bows on each kite. How many bows did Justin make? 14. Lyn plans to walk 3 miles every week. How many total miles will Lyn have walked in week 5? Lyn s Walking Chart Weeks Total Miles E WRITE MATH Buses arrive at the bus stop at 7:00, 7:30, 8:00, and 8:30. Tell what time the next bus will arrive if the pattern continues. Describe the pattern. Lesson 2 Start Smart 7

7 Figures Everywhere! Two- and three-dimensional figures can be found everywhere in our world. Reinforcement of GLE Recognize, classify, and transform 2- and 3-dimensional geometric figures. FPO A three-dimensional figure is a solid figure that has length, width, and height. Three-Dimensional Figures FRUIT Sonia noticed that her blueberries and sandwich are three-dimensional figures. What three-dimensional figures are the blueberries and sandwich? A blueberry s shape is a sphere. A sandwich s shape is a rectangular prism. 8 Start Smart

8 A two-dimensional figure is a plane figure that has length and width. Two-Dimensional Figures Identify and describe the figures below. This figure is a square. A square has 4 sides. This figure is a triangle. A triangle has 3 sides. So, a square and a triangle are examples of two-dimensional figures. Identify each three-dimensional figure. See Example cylinder or cube cone or rectangular prism pyramid or cone sphere or pyramid cube or cone cube or sphere Copy and complete the table. See Example 2 Figure Name Sides 11. E WRITE MATH How is a square different from a cube? How are they alike? Lesson 3 Start Smart 9