“Alison’s Timeline of Life now has a number of important features, including the five great extinctions, the Cambrian biota, the Devonian explosion of plant life, and illustrations of the synapsid lineage, which led to mammals. I was pleased to help with the hard work of updating this valuable learning material for Montessori elementary classrooms. – Priscilla Spears, Ph.D.”
Timeline ranges from the Cambrian Period to Cenozoic Era. It is printed on synthetic paper that will not tear or curl when rolled for storage.
This set includes the following:
- Control chart
- Mute chart
- Precut picture cards/decals and era labels (laminated and cut)
- Research cards (printed)
Wonderful learning tool 
