4 Feb
2018
4 Feb
'18
7:35 a.m.
BTW, this video is excellent for grade school kids. It is accessible, and involves “math without numbers,” which is an attractive idea for kids stuck learning arithmetic tables.
On 2Feb 2018, at 1:05 PM, Thomas Colthurst <thomaswc@gmail.com> wrote:
https://www.crcpress.com/Outside-In-and-Not-Knot-DVD--two-Booklets/The-Geome...