


Mathematics Skill or Topic Area: Mean, Median and Mode 

Next Gen Science Standards: PS1: Matter and Its Interactions; PS3: Energy Common Core ELA for Science: RST.68.2. Determine the central ideas or conclusions of a text; provide an accurate summary of the text distinct from prior knowledge or opinions. RST.68.8. Distinguish among facts, reasoned judgment based on research findings, and speculation in a text. RST.68.9. Compare and contrast the information gained from experiments, simulations, video, or multimedia sources with that gained from reading a text on the same topic. Common Core Math Standard: CC.7.SP.1 Understand that statistics can be used to gain information about a population by examining a sample of the population. 

Video Engagement: Space Weather This NASA eClips video segment looks at space weather and examines the major impacts that space weather can have on Earth (5 minutes). View Program 


Explore math connections with SpaceMath@NASA 

Problem I  How Common are XClass Solar Flares  Students work with a catalog of Xclass flares during the last sunspot cycle (19962008) and determine the statistical properties of these events. Topics include calculating mean, median and percentage. [Open PDF] Problem II  Sunspots and Satellites  When theres more theres less.  Students use a table of sunspot numbers and the number of satellites that reenter Earths atmosphere each year to study the effects of solar activity on satellite burn up. Topics include calculatuing mean, median and mode from a table. [Open PDF] Explain your thinking: Write your own problem  Using information found in the Math Connection problems, the press release or the video program, create your own math problem that involves the different types of solar storms. Explain why you set the problem up this way and how you might find its answer. Evaluate your understanding: Challenge Problem  Along with solar flares and coronal mass ejections, solar storms can also produce highenergy bursts of protons called Solar Proton Storms. From a list of 31 of these SPSs detected between 1997 and 2001, calculate the mean, median and mode of these radiation storm intensities, and the median date when they occur. Explain how you arrived at this answer. [Open PDF] Answer: The answer to this problem is provided in the PDF.


NASA / JPL 3D Solar System 

Extend your new knowledge  Students use the Eyes on the Solar System simulator to study the orbit of Jupiter and how the variation in its distance from the sun can be described in terms of mean, median and mode. [ Open PDF ] 
