Birdwatch Note Rating
2024-11-04 11:29:56 UTC - HELPFUL
Rated by Participant: BCFEB1DA0580A6B57384C986DAFB18C99CCDA394416DA6D2D476A1D4A4F6C077
Participant Details
Original Note:
The video shows the boy using expanded form addition; a part of TERC mathematics education which has been standard in the US education system since 1990. Once children master expanded form addition they learn to simplify using the carryover method, it is not a replacement. https://pmc.ncbi.nlm.nih.gov/articles/PMC4445456/ https://investigations.terc.edu/about/history/#:~:text=There%2520have%2520been%25203%2520editions,Learn%2520More%2520%C2%BB
All Note Details