Identify contexts suitable for modelling by trigonometric functions and use them to solve practical problems.
Period, amplitude, translation, dilation, parameter
About the Lesson
Students use a CBR motion detector to measure the motion of a basic pendulum. Practical measurements and numerical data support the identification of the parameters in trigonometric function used to model the data. The phenomenal accuracy of the data and associated function encourages students to fine-tune their parameters to improve their model, constantly rehearsing the associated transformations supported with visual feedback and practical alignment making this a truly memorable mathematics activity.