Developing Computational Fluency with Whole Numbers in the Elementary Grades https://t.co/N8stpiP2EL— Thomas Hammerlund (@thammerlund) October 19, 2019
from Twitter https://twitter.com/thammerlund
October 19, 2019 at 01:38PM
Developing Computational Fluency with Whole Numbers in the Elementary Grades https://t.co/N8stpiP2EL— Thomas Hammerlund (@thammerlund) October 19, 2019
Math Practice: Building Math Fluency through Games - The Recovering Traditionalist https://t.co/kMZ5Y7D70n— Thomas Hammerlund (@thammerlund) October 19, 2019
Number Sense: the most important mathematical concept in 21st Century K-12 education. My HuffPost follow-up article https://t.co/c4S2ZhfkBU— Keith Devlin (@profkeithdevlin) January 1, 2017