Free Math Apps

Little tools I built for my own students. Free, no sign-up, right in your browser.

BREAK IT DOWN taking 6x²(x+1)² apart into 2·3·x·x·(x+1)(x+1)

BREAK IT DOWN

expressions & exponents

Type any expression and take it apart one layer at a time, until every multiplication hiding inside is out in the open.

Open the app
Unfold and Run: 6x² + 9 as a function machine turning 4 into 33, with a T-table

An expression unfolds into a function machine. Run numbers through it, watch them land in a T-table, then send the table to a graph.

Open the app
LINE-O-RAMA: a line on a graph with boxes for m and b

LINE-O-RAMA

slope-intercept

Study the graph, find the slope and the y-intercept, and name the line in y = mx + b form. A new line every time.

Open the app
FOIL-O-RAMA: multiply (x+13)(x+1) one step at a time

FOIL-O-RAMA

multiplying binomials

Multiply two binomials step by step: First, Outer, Inner, Last, then combine like terms. Three levels, up to negatives and leading coefficients.

Open the app
FACT-O-RAMA: factor x² + 20x + 100 into two binomials

FACT-O-RAMA

factoring quadratics

FOIL in reverse. Factor each quadratic into two binomials, starting with positives only and working up to negatives and leading coefficients.

Open the app
Got an idea for the next one?

What is your student stuck on?

Email Joey
Want to use these with Joey?
Book tutoring
email Joey