MERLOT Materials

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This is a very nicely presented short course in trigonometry for the student who has already learned algebra and... see more

Illustrates an isosceles triangle theorem.

The graphs of sin, cos and tan are generated by the user by means of a scroll bar which controls the motion of a point on... see more

This JAVA applet demonstrates the Law of Sines in two forms.

Throw darts at a circle, get the ratio inside to outside circle, and estimate pi.

Contains Preparation to Mathematics Placement Tests.

Illustrates geometrical relationships between the sides of related triangles.

Visually demonstrates the relation between constant velocity motion on a circle and sine wave generation

Illustrates a theorem using the Pythagoras diagram but yielding a surprising triangle.

This calculator computes the angles (and side) of the two possible triangles given 2 sides and 1 non-included angle.

This calculator computes the angles of a triangle given 3 sides.

Gives the lengths of altitude and median along with radii of incircle and circumcircle.

Free online mobile-friendly Trigonometry end-page notes and formulas.


This trigonometry textbook is different than other trigonometry books in that it is free to download, and the reader is... see more

"WAGmob brings you Simple 'n Easy, on-the-go learning app for Trigonometry. The app helps you understand the basics in a... see more

Mathway is a mathematics problem solving tool where students can select their math course - Basic Math, Pre-Algebra,... see more

Discussion of a technique for estimating pi, by dropping a needle between parallel lines.

This is a free textbook offered by Stitz and Zeager. According to the authors, "We are two college mathematics professors... see more

Obtaining a single subject credential in mathematics enables you to teach mathematics in middle and high schools. To earn... see more

En el presente objeto virtual encontrarás una forma clara y especifica para conocer y \o identificar el teorema del... see more

Learn how sin cos tan table is formed and how to memorise it at teachoo.

'Don;t want an expensive calculator with functions you would never use? Do you want to solve your trigonometric problems... see more

Flash program that tests students’ graphical understanding of addition or subtraction of functions. Uses two randomly... see more