Rich Tasks 77: 1 billion seconds old!

How old would you be when you are 1 billion seconds old?

How many seconds would you have lived if you lived up to 100 years of age?

Math Pics 14: Water Resources Infographic

Rich tasks 71: What is the highest number you can make ?

What is the largest number you can get if you move exactly two matches?

Problem 125: Million Dollar Question

Teachable Moments:The $80 Trillion World Economy in One Chart

This infographic can be used while teaching percentages, standard form, statistics and big numbers.

http://www.visualcapitalist.com/80-trillion-world-economy-one-chart/