— Thomas Hammerlund (@thammerlund) January 12, 2020
from Twitter https://twitter.com/thammerlund
January 13, 2020 at 05:31AM
— Thomas Hammerlund (@thammerlund) January 12, 2020
23 Fun Hands-On Ways to Teach Multiplication https://t.co/OAFV1fDeWI via @WeAreTeachers— Thomas Hammerlund (@thammerlund) March 31, 2019
— Thomas Hammerlund (@thammerlund) November 30, 2018
How to do multiplication with your fingers https://t.co/EzUCJxz3Ez— Guy Kawasaki (@GuyKawasaki) May 24, 2017
A multiplication grid... to scale! Each entry is the right size (oh, and square numbers are squares!) http://pic.twitter.com/NbbXB0jpdZ— TheChalkface (@the_chalkface) April 27, 2017