## Global Math Projects

*Brief descriptions of the projects are given below. You may click on the links for examples of related work. All of these could be done by a single class, but they are designed for inter-school collaboration. We are always happy to accept new ideas for projects.*

What Does "Equal" Mean?

China and India

Does Money = Happiness?

Who We Are

Geometry in Your Neighborhood

Talk About the Weather

Temperature Scatterplot

Earth Circumference

**Grade level**: 7-12.**Math Topics:**Concepts related to equality, ex. congruent, similar, symmetrical, etc.**Description:**Students compare and contrast mathematical terms related to equality, using both mathematical and global examples.**World Population****Grade level:**10 -12.**Math Topics:**Exponential functions, graphing and modeling.**Description:**Students collect data and create models for world population growth, research and predict "Carrying Capacity" for our planet. Students investigate the consequences of overpopulation.China and India

**Grade level:**8 -12.**Math Topics:**Systems of linear equations, graphing.**Description:**Students collect data on population growth in China and India, create a system of linear equations and solve. When will India overtake China? What are the issues associated with this population race?Does Money = Happiness?

**Grade level:**8 -12.**Math Topics:**Statistics and analysis of both unary and binary data,including scatterplots and box-and-whisker diagrams.**Description:**In Part 1 students collect data on per capita income (PCI) for a set of countries by region and search for median, range and outliers. In Part 2 this data is paired with a related statistic such as longevity,literacy, availability of drinking water, etc. Is there a correlation between PCI and these other items?Who We Are

**Grade level:**6 -12.**Math Topics:**Basic statistics: range, median, mean, histograms, etc.**Description:**Students design a survey and then collect data on both qualitative and quantitative components of their community. Ideal for collaboration with another school.Geometry in Your Neighborhood

**Grade level:**6 -12.**Math Topics:**Geometric Shapes**Description:**Students take photos of objects in their neighborhood corresponding to geometric concepts (ex. parallel, similar, pentagon). They create a brief description of the object, both its geometrical and social significance. Ideal for collaboration with another school.Talk About the Weather

**Grade level:**10 -12.**Math Topics:**Sine curves, transformations, modeling, extrema, graphs.**Description:**Students collect data on average monthly temperature in two parts of the world and model with sinusoids. They then analyze and try to predict when the two areas will have the same temperature. Ideal for collaboration with another school.Temperature Scatterplot

**Grade level:**6 -12.**Math Topics:**Basic statistics and graphing, linear regression.**Description:**Students collect average monthly temperature data from two parts of the world. The two sets are correlated by month and plotted. A linear regression is created and analyzed.Earth Circumference

**Grade level:**8 -12.**Math Topics:**Similar triangles, right triangle trigonometry**Description:**Students from around the world measure the shadow of a meter stick at local noon time. Based on the experiment by Eratosthenes, they then calculate the circumference of the Earth using basic right triangle trigonometry.