Free Montessori Math Videos
bead pyramid #montessori #math Actual link to post http://www.jojoebi-designs.com/2011/02/bead-pyramid.html
Montessori Elementary Math Lesson: Multiplication Bead Board
Visualizing The Size And Scale Of Our World via all that is interesting #Infographic #Solar_System
Were we happier in the stone age? Does modern life make us happy? We have gained much but we have lost a great deal too. Are humans better suited to a hunter-gatherer lifestyle?