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Use real-world models to develop understanding of fractions, decimals, unit rates, and proportions.

Modes. Choose Length, Area, Region, or Set on the bottom right to show different representations of the fractions. Set also lets you choose from four different objects. How to Use. Adjust the value of ...

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Calculate the ratio of circumference to diameter for each object in an attempt to identify the value of pi and the circumference formula.

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Enhance the appreciation of trigonometry as a problem-solving tool. Members-Only Access. Log in above or click Join Now to enjoy these exclusive benefits: ...

Members-Only Access. Log in above or click Join Now to enjoy these exclusive benefits: Award-Winning Journals; Free Classroom-Ready Activities; Member-Only Online Teaching Resources ...

Estimate the areas of highly irregular shapes, and use a process of decomposition to calculate the areas of irregular polygons.

Create and compare box-and-whisker plots using information from basketball statistics.

Use bivariate data to investigate relationships between the variables using linear, exponential, power, logarithmic, and other functions for curve fitting.