"By 2025, the developing world, as we understand it now, will be home to 29 megacities. We explore the latest UN estimates and forecasts on the growth of these 'cities on steroids', and take a look at the challenges and opportunities megacities present for the tens of millions living in Lagos, Mexico City and Dhaka."
Though more than two years into my school’s implementation of project based learning, yesterday, I found myself excited all over again. I was helping a second grade teacher enhance her landforms PBL by using Padlet as part of the KWL process and suddenly realized that this approach to student-centered learning has truly become a part of who we are as a school.
My adventures in combining PBLs and iPads began with a gift of two carts. I had just started taking the PBLU online courses when the head of our independent pre-k through eighth grade school challenged each grade-level team to teach one unit using the PBL approach while finding authentic ways to draw in iPads. As the lower school technology integration person, I immediately went on a quest to find a guinea pig willing to plan and co-teach a PBL unit incorporating iPads. This is the story of that first experience. . .
"By 2050, the world's population will likely increase 35 percent. But is growing more food the only option—or even the best? National Geographic investigates the challenges and solutions to feeding everyone on our planet, based on an eight-month series in National Geographic magazine. Visit http://natgeofood.com for ongoing coverage of food issues as we investigate the Future of Food today on World Food Day."
Tags: sustainability, agriculture, food production, unit 5 agriculture.
Commerce knits the modern world together in a way that nothing else quite does. Almost anything you own these days is the result of a complicated web of global interactions. And there's no better way to depict those interactions than some maps.
Scientists have issued a new warning to the world’s coastal megacities that the threat from subsiding land is a more immediate problem than rising sea levels caused by global warming.
A new paper from the Deltares Research Institute in the Netherlands published in April identified regions of the globe where the ground level is falling 10 times faster than water levels are rising - with human activity often to blame.
In Jakarta, Indonesia’s largest city, the population has grown from around half a million in the 1930s to just under 10 million today, with heavily populated areas dropping by as much as six and a half feet as groundwater is pumped up from the Earth to drink.
The same practice led to Tokyo’s ground level falling by two meters before new restrictions were introduced, and in Venice, this sort of extraction has only compounded the effects of natural subsidence caused by long-term geological processes.
"Watch along with Expedition 38 crew members Mike Hopkins and Rick Mastracchio as they look at various cities across the globe from the vantage point of the cupola on board the International Space Station."
Tags: mapping, perspective, images, remote sensing, geospatial, unit 1 Geoprinciples.
"Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling domination on one small beach, discover how game theory and the Nash Equilibrium inform these retail hotspots."