alexchik

77 Works

Works

Heron's Formula Proof Without Words: Geometric Construction with Incircle

2015-04-30 01:38

Trigonometric Ratios of Special Angles

2015-05-27 14:04

Visual Proof of Cosine Rule: Geometric Diagram

2012-10-10 08:00

Sine Formula Demonstration

2015-04-17 14:28

Combined Quiz on Bearings

2016-03-15 01:17

True Bearings Quiz: Interactive Angle Identification Practice

2016-02-13 15:47

Contour Lines

2016-01-28 05:23

Visualizing Angle of Elevation & Depression with Geometry

2015-05-27 12:37

Interactive Quiz on Solving Right Triangles with Dynamic Construction

2016-03-10 01:45

Quiz on Solving Right Triangles (Finding Angles)

2016-03-09 06:33

Quiz on Solving Right Triangles: Finding Side Lengths

2016-03-08 13:07

Relations Among Trigonometric Ratios

2015-05-27 14:04

Verification of Pythagoras Theorem

2015-01-23 05:33

Quiz on Compass Bearings: Quadrant Angle Practice

2014-03-26 13:27

Reference Angle on the Unit Circle

2014-11-23 14:31

Proof of Pythagorean Theorem (1)

2012-11-06 01:32

Quiz on Trigonometric Ratios

2014-01-23 13:57

Dynamic Definition of Trigonometric Ratios for Arbitrary Angles

2013-03-27 04:04

Quiz on Simple and Compound Interest

2016-02-01 00:43

Interactive Hong Kong Salaries Tax Calculator Based on Piecewise Functions

2016-02-26 12:28

Compound Interest Calculation and Demonstration

2016-02-01 13:39

Simple Interest Calculation and Demonstration

2016-02-03 06:47

Addition and Subtraction of Directed Numbers (2)

2015-01-21 04:29

Addition and Subtraction of Directed Numbers (1)

2015-01-21 04:28

Percentage (Part-Whole)

2013-12-26 14:39

Quiz on Addition and Subtraction of Directed Numbers (1)

2015-01-21 04:30

Interactive Quiz on Addition and Subtraction of Directed Numbers (2)

2015-01-21 04:31

Graphs of Linear Equations in Two Variables

2015-08-10 02:28

Quiz on Solving One-step Linear Equations (1)

2015-11-13 12:46

Interactive Quiz on Straight Line Equations

2012-12-19 06:19

Simultaneous Linear Equations Practice

2012-11-22 06:05

Trigonometric Ratios: Sine in Context

2013-03-19 09:09

Rotational Symmetry Demonstration

2013-08-16 08:21

Interior and Exterior Angles of Triangles

2012-12-17 15:46

Quiz on Polar Coordinates (2)

2013-07-23 03:17

Geometric Construction and Demonstration of Square Roots

2015-01-23 05:30

Quiz on Naming Congruent and Similar Triangles

2015-08-22 05:48

Measurement and Classification of Angles

2012-11-30 03:18

Measures of Central Tendency: Mean, Median, and Mode

2015-11-24 12:19

Length of Horizontal or Vertical Line Segments

2015-01-17 14:12

Classification of Triangles: Interactive Exploration by Sides and Angles

2013-01-28 06:20

Expectation Value Simulator: Spinner Probability Experiment

2015-09-13 08:07

Sum of Interior Angles of Polygons

2013-02-14 06:58

Exploring Reflection Transformation

2014-03-15 05:57

Solving Triangles: Exploring the SSA Ambiguous Case

2013-03-26 02:02

Interactive Quiz on Angles Associated with Parallel Lines

2014-03-26 09:51

Reflectional Symmetry Demonstration

2013-08-16 14:09

Interactive Translation Transformation

2014-03-15 06:08

Interactive Quiz on Reflection Transformation

2016-02-19 11:30

Introduction to Rectangular Coordinates — GeoGebra Book Collection: Coordinate Geometry for Middle School

2015-01-17 10:13

Arcs and Angles at Centre and Circumference

2015-03-12 02:04

Interactive Quiz on Translation

2016-02-25 13:32

Sum of Exterior Angles of Polygons

2013-02-01 15:44

Quartiles and Box Plot (Comparing Two Data Sets)

2015-11-03 10:52

Locus (3T): Interactive Geometry Construction and Demonstration

2012-09-07 06:24

Proof of Angle at Centre and Angle at Circumference Theorem

2015-03-13 12:41

Quiz on Quartiles and Box Plot

2012-09-17 06:40

Cumulative Frequency Polygon and Histogram Analysis

2015-12-07 10:56

Interactive Quiz on Rotation Transformation

2016-02-19 15:00

Quiz on Angles in a Circle

2016-02-09 22:04