Lesson 3-3 Pre-Assessment

Describing Patterns with Variables Post-Assessment

Scientific Notation Pre-Assessment Block 6

Just how big is 7 billion?

The world's population just reached the 7 billion mark! Just how big is that? Did you know that to count to 7 billion it would take you more than three decades or that seven billion seconds ago, the year was 1789?? Wow!!
For other ways to visualize how big 7 billion is check out this video from CNN.

Block 6 Lesson 1-6 Post-Assessment

The Powers of Ten

powers of ten :: charles and ray eames from bacteriasleep on Vimeo.

Lesson 1-5: More Powers of Ten Post Assessment