1. Mathematics Ronald Hui Tak Sun Secondary School

2. Ronald HUI Mathematics What have you learnt from the Primary School? What have you learnt from the Primary School? What have you learnt from the SAP (Summer Adaptation Programme) in August? What have you learnt from the SAP (Summer Adaptation Programme) in August?

3. Ronald HUI Mathematics What is Mathematics? What is Mathematics? Carl F. Gauss (1777–1855): Carl F. Gauss (1777–1855): Mathematics is the Queen of the Sciences. Mathematics is the Queen of the Sciences.

4. Ronald HUI Mathematics

5. Mathematics

6. Mathematics

7. Mathematics How many seconds in a day? How many seconds in a day?

8. Ronald HUI Mathematics How many hours in a day? How many hours in a day? How many minutes in a day? How many minutes in a day? How many seconds in a day? How many seconds in a day?

9. Ronald HUI Mathematics How many times did the minute- hand overlap with the hour-hand of a clock in a day? How many times did the minute- hand overlap with the hour-hand of a clock in a day? How many times did the minute- hand overlap with the second- hand of a clock in a day? How many times did the minute- hand overlap with the second- hand of a clock in a day?

10. Ronald HUI Mathematics Mathematics is interesting Mathematics is interesting 1 x 8 + 1 = 9 1 x 8 + 1 = 9 12 x 8 + 2 = 98 12 x 8 + 2 = 98 123 x 8 + 3 = 987 123 x 8 + 3 = 987 1234 x 8 + 4 = 9876 1234 x 8 + 4 = 9876 12345 x 8 + 5 = 98765 12345 x 8 + 5 = 98765 123456 x 8 + 6 = 987654 123456 x 8 + 6 = 987654 1234567 x 8 + 7 = 9876543 1234567 x 8 + 7 = 9876543

11. Ronald HUI Mathematics

12. Mathematics Mathematics is an English lesson Mathematics is an English lesson “+” – Addition, Plus “+” – Addition, Plus “–” – Subtraction, Minus “–” – Subtraction, Minus “x” – Multiplication, Times “x” – Multiplication, Times “  ” – Division, Is divided by “  ” – Division, Is divided by

13. Ronald HUI Dictation 1.1 + 2:1 _______ 2 1.1 + 2:1 _______ 2 2.3 x 4:3 _______ 4 2.3 x 4:3 _______ 4 3.8  2:8 _______ 2 3.8  2:8 _______ 2 4.9 – 5:9 _______ 5 4.9 – 5:9 _______ 5

14. Ronald HUI Dictation 5.Add 3 to 6 5.Add 3 to 6 6.Subtract 4 from 3 6.Subtract 4 from 3 7.Multiply 5 by 2 7.Multiply 5 by 2 8.Divide 6 by 3 8.Divide 6 by 3

15. Ronald HUI Dictation 9. 9. 10. 10. 11. 11. 12. 12.

16. Ronald HUI Mathematics What should be correct attitude in a Mathematics lesson? What should be correct attitude in a Mathematics lesson? Ask yourself – understand? Ask yourself – understand? Believe first – put into mind Believe first – put into mind Copy – for study Copy – for study Do homework – test yourself Do homework – test yourself Easy job! Easy job!

17. Ronald HUI Mathematics What should be ready in the next lesson? What should be ready in the next lesson? Textbook Textbook Workbook Workbook Notebook Notebook Facebook Facebook

18. Ronald HUI Mathematics Page 4 of textbook Page 4 of textbook “+” – Addition Plus “+” – Addition Plus “–” – Subtraction Minus “–” – Subtraction Minus “x” – Multiplication Times “x” – Multiplication Times “  ” – Division Is divided by “  ” – Division Is divided by

19. Ronald HUI Good Luck! Enjoy the world of Mathematics!