KALKULATOR DAN KOMPUTER DALAM BILIK DARJAH MINGGU 5

Transcription

1 KALKULATOR DAN KOMPUTER DALAM BILIK DARJAH MINGGU 5

2 DULU DAN KINI

3 SEKOLAH TELAH BERUBAH

4 Adakah Pengajaran dan Pembelajaran dalam bilik darjah turut berubah? Has technology arrived in the classroom? THE COMPUTER Should we allow technology into the classroom? TECH SMART DEVICES CALCU- LATORS

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6 Pertimbangkan senario berikut You will deposit RM every month into a fixed deposit account for up to 12 months. The bank is offering the following rates: 2.0% p.a for a fixed period of 1 month 2.2% p.a.for a fixed period of 3 months 2.3% p.a. for a fixed period of 6 months 2.5% p.a. for a fixed period of 12 months What is your choice for the period duration? Use pencil & paper Use mental calculation

7 What is your finding? How did you arrive at your finding? Which is more efficient? Using pencil & paper? Using algorithm? Using calculator? Using a computer?

8 Apakah peranan kalkulator?

9 Walaupun kalkulator telah lama digunapakai di sekolah, beberapa mitos terus wujud

10 Mitos: 1. Penggunaan kalkulator tidak memerlukan pemikiran 2. Penggunaan kalkulator menjadikan pencapaian matematik pelajar semakin merosot.

11 Mitos: 3. Pengiraan dengan kalkulator sentiasa lebih cepat. 4. Kalkulator berguna hanya untuk pengiraan

12 When is calculator use appropriate?

13 Calculator-to use or not to use 1. 6 x x10x10x10

14 Kalkulator perlu digunakan sebagai alat pengiraan apabila... Memudahkan penyelesaian masalah Memudahkan pengiraan yang rumit menumpukan perhatian kepada cara penyelesaian

15 menghilangkan kebimbangan tentang kegagalan pengiraan Memberi motivasi dan keyakinan

16 How are calculators used effectively in the classroom? Have students decide on reasonableness of calculator answers before they do the calculation Use questions & discussion to help students think actively about the processes used to arrive at answers Mix in problems that are easier to solve by hand or that become complicated on the calculator so that students will use the calculator discriminately

17 Example The difference between memorizing 5 x 5 = 25 and hitting 5 + on the keypad five times? Connections between addition & multiplication Underlying patterns of multiplication can be seen in the process

18 Komputer? Komputer boleh digunakan dalam pelbagai cara di dalam kelas matematik Guru boleh menggunakan komputer dalam pengajaran dan pembelajaran statistik graf, spreadsheets, perkadaran Pelajar boleh menjalankan siasatan lanjutan idea-idea matematik yang memerlukan kemahiran berfikir tinggi dan logik.

19 Komputer? hands-on dalam penyelesaian masalah Membantu pelajar memahami proses dan pertimbangan yang merupakan ciri utama penyelesaikan masalah matematik. teknologi komputer di dalam bilik darjah meningkatkan minat murid-murid.

20 Multiple Uses of Computers in the Classroom CHARTS DIAGRAMS PERFORM CALCS TEACHER DEMOS THE COMPUTER ACCESS INFO IND WORK GROUP WORK

21 Common Messages Appropriate use of calculators/technology is encouraged. The existence of calculators/technology does not diminish the need for computational fluency. Calculators/technology can support increased understanding of mathematics. Calculators/technology can support effective teaching. Calculators/technology are commonly used in the workplace, therefore students should learn to use these tools to solve problems. Teachers are responsible for appropriate and effective use of calculators/technology.

22 Questions to think about What are the pros and cons of allowing students to use calculators only after they have proven their ability to compute with pencil and paper? How can calculators be used to help students develop a broader view of mathematics problem solving? Can students be taught estimation techniques that will help them recognize whether computer or calculator results are reasonable? If so, how? How can computers be used to help students develop the mathematical reasoning and problem-solving concepts required in the real world? How can computers be used in mathematics programs to simulate problem-solving situations and applications?

23 Bincang dalam kumpulan Tutorial 2.2

24 Sekian Terima Kasih