Rye Fractions

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This presentation on Fractions was for Grades 4 to 6 teachers from elementary and middle schools of Rye City School District in New York.

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Rye Fractions

  1. 1. teaching<br />fractions<br />Yeap Ban Har<br />National Institute of Education<br />Nanyang Technological University<br />Singapore<br />yeapbanhar@gmail.com<br />Slides are available for download from<br />www.banhar.blogspot.com or www.mmepdpm.pbworks.com<br />
  2. 2. Grade 1 materials, consolidated over four years build the foundation for Grade 5 and Grade 6 materials. <br />
  3. 3. teaching<br />fractions<br />
  4. 4. How many thirds are there in 1 whole?<br />
  5. 5. How many thirds are there in 1 whole?<br />How many thirds are there in 2 wholes?<br />
  6. 6. teaching<br />fractions<br />Grade 4<br />Grade 6<br />How many thirds are there in 1 whole?<br />How many thirds are there in 2 wholes?<br />How many thirds are there in ?<br />How many thirds are there in ?<br />
  7. 7. teaching<br />fractions<br />How many 2 thirds are there in 1 whole?<br />
  8. 8. This is a 2-thirds.<br />This is half of 2-thirds.<br />
  9. 9. teaching<br />fractions<br />How many sixths are there in 1 half?<br />
  10. 10. How many sixths are there in 1 whole? <br />1 half?<br />
  11. 11.
  12. 12. developing<br />visualization<br />How Can I Help My Students See It?<br />extensive<br />use of visuals<br />in textbooks<br />developing visualization<br />
  13. 13.
  14. 14. Adding like fractions, sum less than 1<br />Adding unlike, related fractions, sum less than 1<br />Adding unlike fractions, sum less than 1<br />Adding like and related fractions, sum more than 1<br />Adding unlike fractions, sum more than 1<br />Adding mixed numbers<br />
  15. 15. conceptual<br />understanding<br />spiral<br />curriculum<br />mathematical<br />variations<br />concrete <br />key<br />pictorial abstract<br />features<br />of<br />singapore<br />math<br />using fractions as a case study<br />
  16. 16. teaching<br />fractions<br />yeapbanhar@gmail.com<br />www.banhar.blogspot.com<br />for addresses of websites and blogs of various aspects of singapore math<br />thank you<br />

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