Marlon Arcila

Applying trigonometry to find heughts and lengths.

Finding lengths of sides of triangles

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Given th original formula the student enters the transformed formula

Sin graph in radians

READY TO USE

Convert degrees to radians and radians to degrees.

Finding lengths of sides of triangles

Showing off the part types.

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The function randexp, provided by an extension, generates a random string matching the given regular expression.

Shows how to enter a logarithm to an arbitrary base, in a mathematical expression part.

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multiple choice testing sin, cos, tan of  random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees

Seven standard elementary limits of sequences. 

Applying trigonometry to find heughts and lengths.

Students enter equation and turning point

Students enter equation and turning point

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Given the gradient of a slope and the coefficient of friction for a mass resting on it, use the equations of motion to calculate how it moves.

Includes a GeoGebra rendering of the model.

An example of using the GeoGebra extension to ask the student to create a geometric construction, with marking and steps.

Give the student three points lying on a quadratic, and ask them to find the roots.

Then ask them to find the equation of the quadratic, using their roots. Error in calculating the roots is carried forward.

Finally, ask them to find the midpoint of the roots (just for fun). Error is carried forward again.

Two sample t-test to see if there is a difference between scores on questions between two groups when the questions are asked in a different order.

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