Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello! Today we're going to break numbers into their parts. Numbers are written in parts. When we look ...

Read, write, & compare multi-digit numbers using symbols including expanded form. Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello! Today we're going to learn to order some numbers. This is a number line. It helps us space out ...

The poster will showcase two ongoing projects in the Development Education and Learning lab at CU Boulder that aim to understand the cognitive processes involved in early multidigit number learning ...