Url: https://www.researchgate.net/profile/Carolyn-Kieran-2/publication/228526202_Algebraic_thinking_in_the_early_grades_What_is_it/links/55895b8408ae2affe714d428/Algebraic-thinking-in-the-early-grades-What-is-it.pdf

Short: https://surl.li/gdzodz

Clicks: 96