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Sometimes it feels as though technology is moving so fast that it's hard to keep pace. Has that always been the case on the larger scale of human history? What does our technical timeline look like?

In this lesson, students order and arrange important technological milestones on a timeline, then calculate the time between major events and look at how those "times between" have changed over thousands of years.

Students will

  • Order positive and negative integers (years) and arrange them on a timeline
  • Find the difference between integers, including negatives
  • Describe how the pace of innovation affects society

Before you begin

Students should be familiar at least with ordering positive integers. They do not need previous experience calculating differences between positive and negative integers nor ordering integers, though these activities are core to the lesson.

Common Core Standards

Content Standards
Mathematical Practices

Additional Materials

  • Scissors. String and clothespins or other materials to make physical timelines.


Deandre! This is his first published Mathalicious interactive.