Thank you for your interest in NCTM’s Illuminations. Beginning in mid-April, all Illuminations content will be moving to nctm.org/illuminations. Interactives will remain openly available and NCTM members will have access to all Illuminations lessons with new filtering and search options. We hope you will continue to utilize and enjoy these resources on nctm.org.

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Pandemics: How Are Viruses Spread?

Predict the spread of a virus over a population.

eEx_7.2.1 ICON
Algebra

7.2.1 Modeling the Situation

9-12
Use an interactive environment to become familiar with the parameters involved and the range of results that can be obtained.
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Algebra

7.2.2 Long Term Effect

9-12

Investigate how changing parameter values affects the stabilization level of medicine in the body.

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Algebra

7.2.3 Graphing the Situation

9-12
Analyze an interactive graph to interpret results.
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Geometry

6.3.2 Side Length, Volume, and Surface Area of Similar Solids

6-8
Manipulate the scale factor that links two three-dimensional rectangular prisms and learn about the relationships among edge lengths, surface areas, and volumes.
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Data Analysis and Probability

5.4 Accessing and Investigating Data Using the World Wide Web

3-5
Use census data available on the Web to examine questions about population.
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Geometry

Incenter-Incircle

9-12

This applet allows for the discovery of the incenter and incircle of a triangle.

 

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Geometry

Angle Bisector

9-12

This interactive demonstrates how to bisect an angle.

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Geometry

Area of Rectangles

3-5

This applet allows for the exploration of the area of rectangles.
 

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Geometry

Area of Triangles

3-5, 6-8

To find the area of a triangle, try to make a parallelogram using a copy of the triangle.