Happy Birthday

Singapore 2011

Hwa Chong Institution 2011

Objective :

A A : Authentic Task (Happy Birthday Singapore 2011)

B B : Balance (Routine and non-routine)

C C : Collaborative Learner ( Active Contributor)

Outlines :

•T – Teaching Ideas (Past ,Present )

•R – R2D2

•I – Innovation

•G – Good Tools : VTI & Excel

•O – Outcomes

T – Teaching Ideas

•Past (Experience)

-Teacher –centered learning

-Graphing of the various trigo. graphs on graph paper

eg. y = sin x , y = 2 sin x , y = sin (x + 45o), y = sin x +

3

•Present (Experiment)

-Student – centered learning

-Collaborative learners

-R2 D2 ( Read – Reflect – Do – Display)

R – R2D2

Read : -Starter ( Recap of standard Trigo. Grpahs)-Geogebra applet -Transformation of the various graphs

Reflect :-Using Linoit to reflect effect a, b ,c and d on y = a sin (bx +c) +d-Sample Student Reflections

Do :-Main Course & Dessert-Create a design / picture Happy Birthday Singapore 2011-Ferris Wheel (Ms Excel)

Display : -Main Course (VTI GC Skills)-Demonstration-Guess the various graphs for these pictures

I – Innovation Trigo. Online Lesson

Starter : -Collaborative learning in Linoit (student response)-Geogbra applet (visual impact) vs (manual sketching)

Main Course :-Skills involve in using the VTI-Problem solving (Mac laptop vs Laptop) eg. run the emulator for mac os-Transfer of knowledge to design a picture for Happy 46th Birthday Singapore

Dessert :-Application of the trigo. graphs knowledge to mathematical modeling of real-life activities-Ferris Wheel with MS Excel

G – Good Tools

VTI :

-Install / Download of the program

-Running on Windows and Mac OS

-How to use the VTI (GC) effectively?

-Use of the WINDOW to set the domain and range

-Readings on working with Style and Storing of pictures for design

(Main Course)

MS Excel :

- Ferris Wheel

- Dessert Template

O – OutcomesTask 1 : y = a sin (bx + c) + d-Online Applet -Offline Applet

Task 2 : Guess the function of these designs.

Task 3: Design a “Happy Birthday 2011” picture using trigo. functions

Task 4: Transfer of their knowledge to real life application. (Ferris Wheel Problem)