In this lesson, students compare and contrast emissions from different modes of transportation and explore the concept of transportation planning. 

Step 1 - Inquire: Students analyze a bar graph of carbon dioxide emissions by different modes of transportation and calculate the most environmentally conscious modes of travel based on emissions.

Step 2 - Investigate: Students analyze commuter survey results of the top concerns with public transportation and complete real-world math problems based on different transportation scenarios, calculating the difference in carbon emission outputs.

Step 3 - Inspire: Students learn about transportation planners and watch a video about Hong Kong's transit system.