Algebra
Fractions
| Adding Fractions | This activity was built to try to help students visualize adding fractions with different denominators. It's still a work in progress. |
| Multiplying Fractions | A visual representation of multiplying fractions, with sliders for both numerators and denominators. |
Functions
| Graphing Quadratics in Vertex Form | This activity lets students interact with a, h, and k for quadratic functions in vertex form. Unfortunately, Desmos does not have the ability to dynamically label the function. |
Inequalities
| Absolute Value Inequalities | This (very inefficiently) illustrates the solution set to the absolute value inequality |x-a|<b, for limited values of a and b. It also clearly demonstrates Desmos' primary weakness - the lack of dynamic labeling. |
| Rational Inequalities | A demonstration of rational inequalities, highlighting when the graph is below or above the x-axis. It also highlights the intercept (if there is one) and any vertical asymptotes. |
Factoring
| Factoring Visual | This was a visual I made to demonstrate a quadratic polynomial with all positive terms. A variety of questions could be posed. |