### Applet for Presenting Area Problem

November 7, 2013

One of my favorite ways of presenting a problem is not presenting the problem at all but just letting learners observe first and then ask […]

### Applet for Teaching Triangle Similarity

October 21, 2013

Two or more triangles are similar if their corresponding angles are congruent. It also follows that if two triangles are similar, their corresponding sides are […]

### Dynamic Worksheet for Teaching Geometric Relations

March 6, 2013

Here is a dynamic worksheet for teaching and reviewing some geometric relations such as sum of angles in a triangle, angles of parallelograms, corresponding angles, […]

### Applet for area of trapezoid

February 26, 2013

You can use the following applet to help your students discover the area of trapezoid. The only prerequisite knowledge is area of a parallelogram which […]

### Completing the Square Solver with Visuals

January 18, 2013

You can use this dynamic worksheet to have students explore and discover the procedure of completing the square for solving quadratic equation of the form x2+bx=c. Note […]

### Dynamic worksheet for counting chords and diagonals

January 4, 2013

Here is a dynamic worksheet you can use in problems involving chords of circles and diagonals of polygons. The figure produced by the worksheet not […]

### Trigonometric Ratios Calculator

November 7, 2012

Trigonometric Ratios Calculator lets you calculate the value of sine, cosine, tangent, and cotangent of acute angle in a right triangle. But this is more […]

October 22, 2012

This is an applet you can use to teach quadratic equation, their form, and properties. Sample tasks you can ask the students to do: A. […]

### Linear Equation Solver

October 13, 2012

This is an applet students can use to explore and figure out how to solve systems of linear equation by substitution. Use the applet to […]

### Applet for solving equations in two unknowns

September 29, 2012

This is a dynamic worksheet for exploring the sum and difference of two equations in two unknowns. You can use this to explain the elimination […]