pembentangan tugasan graphic calculator
TRANSCRIPT
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.
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.
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.
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,