1. Professional Development for Singapore Math (Lower Grades) Yeap Ban Har banhar@sg.marshallcavendish.com Pearl City, Hawaii 11 August 2011 JalanBesar PCF Kindergarten, Singapore Presentations are available at www.banhar.blogspot.com
2. Professional Development for Singapore Math (Lower Grades) Day 1 Session 1 Open Lesson Grade 1/2 Adding CPA Approach
7. “an excellent vehicle for the development and improvement of a person’s intellectual competence” This is the rationale stated in Singapore Mathematics curriculum document.
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9. Professional Development for Singapore Math (LowerGrades) Day 1 Session 3 Counting, Adding, Subtracting CPA Approach
36. Method 1 It does not matter what the second digit is. If it is 0 : 60 – 6 If it is 1 : 61 – 7 which should be the same because 61 is 1 more than 60, and 7 is also 1 more than 6. 5 4
37. Method 2 Multiply the first digit by 9 Method 3 The first digit in the final answer is related to the first digit. Also the digits in the final answer sum up to 9. Method 3 Multiply the first digit by 10 and then …