https://theteacherstudio.com/subtraction-observationsthe-power-of/ Learning, thinking, creating Wed, 26 Dec 2018 23:50:34 +0000 hourly 1 https://wordpress.org/?v=6.9.1 https://theteacherstudio.com/subtraction-observationsthe-power-of/#comment-3125 Thu, 06 Dec 2018 06:15:37 +0000 https://theteacherstudio.com/2016/11/subtraction-observationsthe-power-of.html#comment-3125 […] Looking for more guidance? Want to read a post about observation in math class? […]

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