The Number System
This post explores the concept of square roots, engaging around preconceptions, reengaging around misconceptions, as well as the birth and benefits of Sticky Math.
Another way to use Sticky Math, which emphasizes constructing a viable argument and provides an opportunity to critique the reasoning of others (MP3).
These stickies continue to explore slope intercept form; however, the emphasis is on negative slope. It also includes a double negative slope as a comparison. Conceptual understanding can built by examining verbal descriptions in a context.
Do students understand that the algebraic representation of function and the graphic representation are the same things? Do they understand the concepts of slope and intercept? How does the placement of the negative sign influence its meaning?