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Lew W. S.
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Area of Triangle in Circle
Activity
Lew W. S.
Combining Simple Algebraic Fractions
Activity
Lew W. S.
Multiplying Surds (of different indices)
Activity
Lew W. S.
Self Assessment Applets Additional Mathematics (Secondary)
Book
Lew W. S.
Coordinate Geometry of St Lines Revision Practice
Activity
Lew W. S.
Graph of Income Tax Rates
Activity
Lew W. S.
Elementary Math (Sec 1 to 4) Applets
Book
Lew W. S.
Cylinder : Simulating rise in water level from immersion of solid in
Activity
Lew W. S.
The Uniform/Constant Cross Section of a Prism
Activity
Lew W. S.
Compound Interest 複利息 (version with common ratio)
Activity
Lew W. S.
Elementary Math (Sec 1 to 4) Applets (Shared Copy)
Book
Lew W. S.
Design Examples & Templates of Possible Interactivities
Book
Lew W. S.
0-Teacher as designer of quality digital learning resources
Book
Lew W. S.
Geogebra Latex, Scripting References on GGB Tube
Book
Lew W. S.
Interior Angles of Regular Polygons
Activity
Lew W. S.
Angle Properties of Regular Polygons (Updated)
Activity
Lew W. S.
Exterior Angles of Regular Polygons
Activity
Lew W. S.
Where are the exterior angles of a polygon (Pentagon)
Activity
Lew W. S.
3D Nets Compilation (by Edward Knote)
Activity
Lew W. S.
Primary School Fractions
Book
Lew W. S.
Primary School Mathematics Collection
Book
Lew W. S.
Applets for Additional Mathematics in Singapore
Book
Lew W. S.
Mensuration
Book
Lew W. S.
Multiplication Frame, Algebraic Factorisation.
Activity
Lew W. S.