https://padlet.com/susieerck/45ubix5lox6i Susie Q Erck Portfolio for MTH 148 en-us 2020-04-03 00:31:36 UTC 2025-11-07 15:28:09 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Apple.png susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115523 Why the Standard Algorithm for Addition and Subtraction in Base Ten Work from Mathematics for Elementary Teachers by Sybilla Beckmann page 119]]> 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115523 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115524 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115524 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115525 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115525 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115526 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115526 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115527 This is in peergrade. ]]> 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115527 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115530 2020-04-03 00:31:36 UTC https://padlet.com/susieerck/45ubix5lox6i/wish/490115530 susieerck https://padlet.com/susieerck/45ubix5lox6i/wish/490115532 The Counting Numbers 
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