What’s your guess? How fast are the number of daylight hours changing each day? Will the changes be dramatic or subtle? Students make guesses; compute how long, on average, the change in daylight hours should be; play with a cool…

The crack in Antarctica’s Larson C ice shelf has been growing for years. Has the speed of the rift’s growth stayed about the same? increased? decreased? Do the math and discuss the implications. The activity: ice-sheet-rift.pdf

On Monday, June 20th, at 06:34 pm EST, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year. This marks the longest day of the year and the summer solstice in the…

The volcano, Kilauea, on the Big Island of Hawaii, has been active and erupting since 2008. There are two lava flows at present and one is now approaching homes on the Big Island. This is another example of natural events…

World Cup ranking – Students explore the ranking formulated from each team’s previous 4 years of play in their geographical divisions. The formula is complex and weighted. Is it fair? 5.OA, 5.NBT, 5.NF.B, 6.NS.B, 6.EE, 6.SP, 7.EE, 8.F, 8.SP, HSA World…

In December the soccer teams with the strongest world rankings were chosen to play in the once-every-4-years World Cup. The team rankings are calculated in a pretty complex manner. How are the 32 teams selected? Students can explore the ranking…

Students ponder the relationship between place latitudes and average January temperatures while they try to discover a correlation. Is this a linear or near linear relationship? … averaging, missing data for averaging, line of best fit, Google Earth, world locations,…