1 / 24

Continuing the Conversation

Continuing the Conversation. Minilessons for Operations with Fractions. Have you been doing minilessons?. A. Everyday as a part of math workshop B. Once or twice a week C. A few times D. Not yet. A warm–up mental math string. 100 / 4 200 / 4 200 / 8 50 / 2 400 / 16 300 / 12

giselle-avery
Download Presentation

Continuing the Conversation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Continuing the Conversation

  2. Minilessons for Operations with Fractions

  3. Have you been doing minilessons? • A. Everyday as a part of math workshop • B. Once or twice a week • C. A few times • D. Not yet

  4. A warm–up mental math string • 100 / 4 • 200 / 4 • 200 / 8 • 50 / 2 • 400 / 16 • 300 / 12 • 1200 / 48 • What strategy does this string support? • How might this string support the development of ideas about fractions?

  5. Landscape of Learning

  6. A portion of the fraction landscape

  7. Let’s go to a classroom… • Clip 234

  8. Another string… • 170 / 17 • 34 / 17 • 204 / 17 • 340 / 17 • 357 / 17 • 323 / 17 • 273 / 13 • What’s the focus of this string? • A) distributive property for multiplication • B) partial quotients • C) simplifying • D) A and B

  9. Any connection to fractions? • 357 / 17 = 340/17 + 17/17 • 7/8 = 2/8 + 4/8 + 1/8

  10. Fractions: addition and subtraction • Represent ¼ + 1/5 on a double number line

  11. Back to the classroom… • Folder One, pg. 2 • Clips 731, 733, 738

  12. Fractions: addition and subtraction • Represent ¾ - 1/3 on a double number line

  13. Fractions: addition and subtraction • Folder One, pg. 3 • Clip 825

  14. Time for further questions on addition and subtraction of fractions…

  15. A warm–up mental math string • ¼ x 1/3 • 2/4 x 1/3 • ¼ x 2/3 • ¾ x 2/3 • 2/4 x 3/3 • 3/5 x 5/17 • What relationships do you see? • What strategy does this string support? • How might this string support the development of ideas about fractions?

  16. A portion of the fraction landscape

  17. Let’s go to a classroom… • Clips 906, 918 • Folder Two, page one

  18. Models

  19. Let’s go back to a classroom… • Folder Two, page 2 • Clips: 1000, 1001, 1025, 1027, 1028

  20. Alyssa's string • 4/10 divided by 1/3 • 4/5 divided by 2/3 • 8/5 divided by 2/3 • 8/10 divided by 2/3 • What strategy does this string support? • What big ideas underlie this strategy? • How might this string be represented on a ratio table?

  21. Fractions: ratio table • With equations: • 4/10 divided by 1/3 = 12/10 divided by 1

  22. Folder 2, page 3Clip 938 50% of 240 0.5 x 240 25% of 240 0.25 x 240 12.5% of 240 1/8 of 240 0.125 x 240 37.5% of 240 0.375 x 240

  23. New Book…… Harris, P.W. (2011). Building Powerful Numeracy for Middle and High School Students. Portsmouth, NH: Heinemann. Distributed in Canada by Pearson

  24. Have fun with minilessons….

More Related