Lesson 9.1 Reteach Name Problem Solving • Compare Fractions 3 2 mile to the store. Nick walked __ mile to the gym. Then he walked __ 4 4 Which distance is shorter? Read the Problem Solve the Problem What do I need to find? 1 I need to find which distance is shorter. What information do I need to use? 2 _ Nick walked 4 mile to the 3 _ gym. Then he walked 4 mile to the store. How will I use the information? I will use fraction strips 1 4 1 4 1 4 1 4 1 4 1 4 1 4 1 4 Compare the lengths. 3 2 _ _ 4 4 2 The length of the _ model is less than the 4 length of the 3 _ model. 4 So, the distance to the gym is shorter. , compare and the lengths of the models to find which distance is shorter. 1. Mariana and Shawn each had 6 pages to read. Mariana read 1 2 __ of of her pages. Shawn read __ 3 3 his pages. Who read more pages? Explain. Reteach © Houghton Mifflin Harcourt Publishing Company 3 ran __ of the race course. Lori 8 3 __ ran of the same race course. Who 6 ran farther? Explain. 2. Carlos R71 Grade 3 Lesson 9.2 Reteach Name Compare Fractions with the Same Denominator Pete’s Prize Pizzas makes a special pizza. Of the toppings, 3 1 _ is ham. Does the pizza have is peppers and _ 4 4 more peppers or ham? 1 3 Compare _ and _ . 4 4 Step 1 The denominators of both fractions are the same, 4. Use fraction circles divided into fourths to model the fractions. _ . Step 2 Shade 1 part of the first circle to show 1 4 3 Shade 3 parts of the second circle to show _ . 4 Step 3 Compare. 3 parts is more than 1 part. 3 _ 4 . 1_4 So, the pizza has more ham. Compare. Write ,, ., or 5. 1. 2. 2 __ 6 1 3. __ 3 2 __ 3 Reteach © Houghton Mifflin Harcourt Publishing Company 1 6 2 4 __ __ 5 4. __ 8 3 __ 8 1 __ 4 5. R72 3 __ 4 2 4 __ 4 6. __ 8 4 __ 8 Grade 3 Lesson 9.3 Reteach Name Compare Fractions with the Same Numerator 1 Ryan takes a survey of his class. _ of the class has dogs, 8 and 1 _ of the class has cats. Are there more dog owners or cat 3 owners in Ryan’s class? Dog Owners 3 Step 1 Divide the first circle into 8 equal parts. 1 Shade _ of the circle to show dog owners. 8 Cat Owners 3 1 _ 3 1 1 1 Compare the fractions. _ 8 Step 2 Divide the second circle into 1 3 equal parts. Shade _ of the circle to 3 show cat owners. 1 3 Step 3 Compare the shaded parts of the circles. Which shaded part is larger? 1 1 _ is larger than _ . 1 _ 1 _ 8 3 8 3 So, there are more cat owners than dog owners in Ryan’s class. , Compare. Write ,, ., or 5. 3 1. __ 3 __ 6 1 2. __ 1 __ 6 2 3. __ 2 __ 6 2 4. __ __ 2 6 4 5. __ __ 4 8 2 6. __ __ 2 4 5 7. __ __ 5 8 1 8. __ __ 1 4 3 9. __ __ 3 4 __ 10. 1 1 __ 3 __ 11. 3 3 __ 4 __ 12. 2 2 __ 6 4 3 6 3 Reteach © Houghton Mifflin Harcourt Publishing Company 8 6 3 3 R73 4 8 6 8 Grade 3 Lesson 9.4 Reteach Name Compare Fractions 2 cup of flour. Mrs. Young’s recipe Mrs. Brown’s recipe uses _ 3 3 _ uses cup of flour. Which recipe uses more flour? 4 2 and _ 3 Compare _ . 3 4 • You can compare fractions using fraction strips. Step 1 Model each fraction. 1 Step 2 Compare the lengths of the models. The length of the 3 _ model is greater 4 than the length of the 2 _ model. 3 2 _ _ 3 3 4 1 3 1 3 1 4 . 1 4 1 3 1 4 1 4 So, Mrs. Young’s recipe uses more flour. 4 3 . Which is greater? Compare _ and _ 6 6 • The denominators are the same, so compare the numerators. 4 . 3 , 4, so 3 _ , _ 6 6 3 . So, 4 _ is greater than _ 6 6 4 _ 6 . 3 _ 6 Compare. Write ,, ., or 5. Write the strategy you used. 2 __ 8 1. __ 3 8 7 __ 8 __ 5 6 3 4. __ __ 5 6 2. 3 3. __ 4 __ 3 6 Reteach © Houghton Mifflin Harcourt Publishing Company 6 R74 Grade 3 Lesson 9.5 Reteach Name Compare and Order Fractions You can use a number line to compare and order fractions. 5 2 7 Order _ , _ , and _ from least to greatest. 8 8 8 Since you are comparing eighths, use a number line divided into eighths. 5 Step 1 Draw a point on the number line to show _ . 8 _ . Step 2 Repeat for 2 _ and 7 8 8 0 8 1 8 2 8 3 8 0 4 8 5 8 6 8 7 8 8 8 1 1 2 Step 3 Fractions increase in size as you move right on the number line. Write the fractions in order from left to right. 5 7 , _ . So, the order from least to greatest is 2 _ , _ 8 8 8 Write the fractions in order from least to greatest. 4 __ 6 1. , 0 6 6 3 __ , __ 2 __ 3 2. , 6 6 1 6 0 2 6 3 6 1 2 1 1 1 __ __ , __ 3. , 4 8 2 Reteach © Houghton Mifflin Harcourt Publishing Company 4 6 5 6 6 6 2 2 __ , __ 6 4 Think: When the numerators are the same, look at the denominators to compare the size of the pieces. 1 0 2 3 __ __ , __ 4. , 4 4 4 R75 Grade 3 Lesson 9.6 Reteach Name Model Equivalent Fractions Equivalent fractions are two or more fractions that name the same amount. You can use fraction circles to model equivalent fractions. 1 1 5 __ Find a fraction that is equivalent to _ . _ 2 2 4 Step 3 Count the number of parts shaded now. There are 2 parts out of 4 parts shaded. 1 4 1 1 4 1 2 2 1 So, 1 _ is equivalent to _ . _ 5 _ 2 4 2 4 1 2 4 1 2 Step 1 Look at the first circle. It is divided into 1 2 equal parts. Shade one part to show _ . 2 Step 2 Draw a line to divide the circle into 4 equal parts because 4 is the denominator in the second fraction. 4 Shade the model. Then divide the pieces to find the equivalent fraction. 1. 2. 1 __ 5 4 ____ 8 3. 1 __ 5 ____ 3 __ 5 ____ 2 8 4. 2 __ 5 3 ___ 6 Reteach © Houghton Mifflin Harcourt Publishing Company 4 R76 8 Grade 3 Lesson 9.7 Reteach Name Equivalent Fractions 3 Kaitlyn used _ of a sheet of wrapping paper. 4 3 _ 5 __ Find a fraction that is equivalent to _ . 3 8 4 4 Step 1 The top fraction strip is divided into 4 equal parts. 3 Shade _ of the strip to show how much paper 4 Kaitlyn used. Step 2 The bottom strip is divided into 8 equal parts. Shade parts of the strip until the same amount is shaded as in the top strip. 6 parts of the bottom strip are shaded. 6 3 5 _ _ 4 8 3 . So, 6 _ is equivalent to _ 8 4 1 4 1 8 1 4 1 8 1 8 1 4 1 4 MXEFL11AWK3X_EN_C8_L 1 8 1 8 1 8 1 8 1 8 MXEFL11AWK3X_EN_C8_L Each shape is 1 whole. Shade the model to find the equivalent fraction. 1. 2. __ 5 1 3. 3 1 __ 5 ___ 6 4 4 __ 5 2 Reteach © Houghton Mifflin Harcourt Publishing Company ___ 8 ____ 8 R77 Grade 3
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