Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello, lovely learners. My name's Miss White and I'm so excited to teach you today. For this lesson you ...

Addition and subtraction with regrouping using different strategies to solve. In this lesson, students go over addition and subtraction with regrouping using different strategies to solve. Today we ...

The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi superstars. My name's Ms. White and I'm so looking forward to being on this learning adventure with ...