PPT-Multiplying Fractions Lesson 5

How does multiplying by a fraction or by a mixed number affect the size of the product How can these tiles be used to find 23 of 12 What is 23 of 12 markers What is 13 of 12 markers 4. The Area Model. Follows Area Model for Multiplication of Whole Numbers. A visual model that assists in learning the standard algorithm. Extends easily to multiplying mixed numbers. Natural extension to . Lesson 5-1. Just Follow These Easy Steps!. Multiply the numerators and write down the answer as your new numerator.. Multiply the denominators and write down the answer as your new denominator.. Simplify.. (Part Two). To find 1/8 of something, we divide that thing by 8.. What if we wanted to know what 3/8 of something was? . You’d be doing the same thing 3 times, so you would multiply by 3. . (72 is a whole number – so it’s all in one group. 72 ÷1 is… 72.) . Presented . to [group/school]. on [date]. . 1. A Multi-State Effort. Developed by State Math Leads from KS, KY, MS, UT, & . WY. WDE Contact: . Laurie.Hernandez@wyo.gov. . Grades 2 – 6 . Fraction Progressions . MAFS.3.OA.3.7. Lesson Opening. Solve the two problems below. Write the equation you used to solve the problem.. Jason ate 2 bags of candies. Each bag contained 9 candies. How many candies did Jason eat?. Unit 5.7. Pages 250-253. . . 2.. 3.. 4.. 6. 50. 30. 120 . Warm Up . Problems. Write each fraction in simplest form.. What is ½ of 12. . What is ½ of 100. What is ¼ of 120. What is ¼ of 480. 04. /04/17. How do we multiply and divide decimals using fractions?. How do we multiply and divide decimals using algorithms?. How do we use division to write repeating decimals?. How do we use scientific notation?. Made Easy!. My momma. says I should “change” my shirt before she “flips” her lid!. © . Mike’s Math Mall. Using…. CCSS 5NBT.B.7. keep. Change!. Flip!. Because with a little change to a division of fractions’ problem, you’ll be right back to multiplying!. What does it mean?. Let’s show it diagrammatically. .  . Now, half this third…. The shaded blue part is half of a third, which is.  .  . Now try this yourself. . Remember to draw the diagram.. Summer 2014. COHERENCE. The importance of Coherent Lessons in Elementary Mathematics. 1. RIGOR. R. educe Side Chatter. I. nvolve Yourself in the Process. G. ive Your Thoughts & Ideas . O. pen Your Mind on how You Can Change Instruction. We are learning to divide . fractions . using related multiplication.. 2. When would you divide fractions?. One example is when you are trying to figure out how many episodes of your favorite ½ hour tv program you could watch in the 1 ½ hrs you have available. . 1. Remember that fractions are parts of a whole or a part of a set of objects. For example, if a bag of apples contains 10 apples and three of the apples are used to make apple tarts, three-tenths, 3/10, of the apples have been used and seven-tenths, 7/10, of the original set of 10 apples remain. . our friends!. Now, let’s. n. ot get all crazy. with this “friend” stuff,. Mr. Sunshine.. © . Mike’s Math Mall. Multiplying. Made easy!. PowerPoint. Introduction. Multiplying Fractions. Hi! My. Slides 13-15: . Workbook Introduction Problem p. 55 . Slide 16: . Workbook Practice. . p. 57-58. Multiplying Multi-Digit Numbers. Enhanced Learning Task. What do we know?. . What do we need to find?.