Tree stumps & glass nuggets at Raylene's Family Day Care (",) I saw this at a Bright Horizons center purchased at Menards which were fire starters. Just took out the flint in center $10. Nice if you do not have access to stumps!
"Maths and science in the kindergarten Waldorf early childhood settings". By Lisa Gromicko. Excellent explanation of how children learn math/science through hands-on play. Originally Pinned by Alec Duncan of http://childsplaymusic.com.au/