SDE Day 3 Sessions

1,545 views
1,514 views

Published on

Updated slides for the four sessions on Day 3 of SDE's National Conference on Singapore Math Strategies

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,545
On SlideShare
0
From Embeds
0
Number of Embeds
1,135
Actions
Shares
0
Downloads
13
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

SDE Day 3 Sessions

  1. 1. morning session| SE03 Developing the Ability to See Patterns through Mathematics yeap ban har | marshall cavendish institute yeapbanhar@gmail.com | www.banhar.blogspot.com
  2. 2. what? to meet demands of global economy Problem-Solving Approach how? to meet the needs of every learner CPA Approach
  3. 3. application lesson | In Common Core State Standards, Grade 4 students learn about angles and by Grade 8, they learn about sum of exterior and interior angles of polygons.
  4. 4. drill-and-practice lesson | Multi-digit division is done in Grades 3 through 5 in Common Core State Standards.
  5. 5. 1 2 3 4 5 6 7 9 8
  6. 6. morning session| SE09 Visualization – Getting Students to See the Math yeap ban har | marshall cavendish institute yeapbanhar@gmail.com | www.banhar.blogspot.com
  7. 7. We will use a tangram set for this workshop. You can cut them out from your handouts or make one using the square paper provided. You can also download a tangram app from Apple Store.
  8. 8. 3-piece solutions
  9. 9. 3-piece solutions
  10. 10. 3-piece solutions can be extended to give 5-piece solutions by adding two largest triangles.
  11. 11. A non-congruent 5-piece solution
  12. 12. y + z = 162 Sum of angles = 360 + 180 = 540 3x = 540 – 2 x 162 3x = 540 – 324 3x = 216 x = 72 Greg Tang’s solution: z = 2y (why?) y + z = 162 3y = 162 = 150 + 12 y = 54 x = 180 – 2 x 54 = 180 – 108 = 72
  13. 13. afternoon session| SF03 Developing Number Sense – A Differentiated Approach yeap ban har | marshall cavendish institute yeapbanhar@gmail.com | www.banhar.blogspot.com
  14. 14. Singapore Malaysia Thailand Indonesia International 48 2 2 0 3 78 12 8 2 17 92 36 26 15 46 99 65 55 43 75 611 440 427 386 500 advanced high intermediate low average gradeeightmathematics
  15. 15. afternoon session| SF08 Engaging Students in Deep Mathematical Thinking with Anchor Tasks yeap ban har | marshall cavendish institute yeapbanhar@gmail.com | www.banhar.blogspot.com
  16. 16. Area = 2.5 Number of dots around the polygon = 5 Area = 2 Number of dots around the polygon = 4 Area = 1.5 Number of dots around the polygon = 3
  17. 17. Area = 6.5 Number of dots around the polygon = 11 Area = 11.5 Number of dots around the polygon = 23 Area = 12 Number of dots around the polygon = 24
  18. 18. Lim Siong Guan Head, Civil Service Singapore

×