Yeap Ban Har gave the Closing Keynote on Day 1 of the three-day institute.

1. Core Elective 1 / 2
Bar Models
in Challenging Word Problems from Singapore Schools
Yeap Ban Har
Slides are available at
www.banhar.blogspot.com

2. key focus
of singapore
mathematics

3. problem
solving
Learning Standards

4. Escuela de Guetamala, Chile

5. Pathlight School, Singapore

6. 3x – 2 = 8
Globe Academy, London

8. Lesson  June 18, 2012
Open Public Lesson, Hawaii

11. Kim 2 Before After
3 Kim m m-2
John 2 John m+3 m+3+2
?
John had 7 more sweets than Kim in the end.

12. 4 units = 100
12 units = 3 x 100 = 300
Its capacity is 300 ml.

13. 5 units = 550
1 units = 110
May 4 units = 440
Chris
1 part = 55
Chris must give May 165 book marks. 3 parts = 3 x 55 = 150 + 15 = 165

14. 48 minutes
8 units = 48 minutes
1 units = 48 minutes  8 = 6 minutes
15 units = 6 minutes x 15 = 90 minutes
Ben took 9 minutes to complete the test.

15. 7
Peili Peili
Nurul Nurul
7
After … 7
Before …

16. 60 + 21 = 81
7
9 units = 81
Peili
Nurul
1 unit = 81  9 = 9
7
(a) $9 x 2 - $7 =$18 - $7 = $11 7
(b) $9 x 5 - $7 x 2 = $45 - $14 = $31
Before …

17. thinking
problem
solving
conceptual
understanding