1. Developing Teaching & Learning
Module-Integrating The Usage Of
Graphic Calculator In Teaching
And Learning Mathematics
Activity.
Pengenalan kepada bentuk graf kuadratik apabila nilai a
berubah dengan menggunakan kalkulator TI Nspire.

2. TOPIC
QUADRATIC FUNCTIONS
SUB-TOPICS
QUADRATIC FUNCTIONS AND GRAPHS

3. LEARNING OBJECTIVE
• Understand the concept of quadratic functions and their graphs.

4. LEARNING OUTCOME
Students will be able to...
• Recognize the shapes of graphs of function y = ax2

6. 21st Century Skills
• Collaboration
• ICT for learning
• Problem solving & innovation (creativity)

7. ACTIVITY-Steps

12. Repeat step 1,2,3 and 4 for other quadratic functions.

16. Soalan Penyiasatan (analisis,sintesis dan
evaluasi)

17. Soalan Penyiasatan (analisis,sintesis dan
evaluasi)
1. Describe the effect on the graph y = ax2 as the value of a
varies?
For a > 0,
• The parabola opens upwards.
• The vertex is the lowest point.
• If the value of a is decreased, the shape of the graphs become
wider.
• If the value of a is increased, the shape of the graphs become
narrower.

18. Soalan Penyiasatan (analisis,sintesis dan
evaluasi)
For a < 0,
• The parabola opens downward.
• The vertex is the highest point.
• If the value of a is decrease, the shape of the graphs become
wider.
• If the value of a is increase, the shape of the graphs become
narrower.

19. Soalan Penyiasatan (analisis,sintesis dan
evaluasi)

20. Soalan Penyiasatan (analisis,sintesis dan
evaluasi)
2. What happens when a approaches zero ?
When a approaches zero, the graph appear to be a straight
line.
3. What happens when the value of a changes to negative?
When the values of a changes to negative, the straight line
becomes a parabola again but concaves downward.
CRITICAL
THINKING
SKILLS -
Analyse,
Evaluate,
Predict,