Visual learning
Interactive visualizers
Number System
9 visualizers
Number Grid
Classify individually selected numbers from 1 to 100 as prime, composite, or neither.
Open visualizerSieve of Eratosthenes
Find all primes up to 100 using the Sieve of Eratosthenes.
Open visualizerFactor Pairs
Find every positive factor pair of a whole number from 1 to 100.
Open visualizerPlace Value
Decompose whole numbers from 1 to 9999 into thousands, hundreds, tens, and ones.
Open visualizerLong Addition
Perform column addition with regrouping.
Open visualizerLong Subtraction
Perform column subtraction with borrowing.
Open visualizerInteger Number Line
Place positive, negative, and zero integers on a number line and compare their direction and distance from zero.
Open visualizerFraction Bar
Connect numerator and denominator to selected equal parts of one whole and exact equivalent forms.
Open visualizerFraction Number Line
Place proper fractions from 0 to 1 on equal denominator subdivisions and identify exact reduced equivalents.
Open visualizerAlgebra
4 visualizers
Balance Scale Equations
Solve positive-integer additive one-step equations by preserving equality and isolating x.
Open visualizerLinear Equation Graph
Understand how slope (m) and y-intercept (b) shape y = mx + b.
Open visualizerAlgebraic Identities
Prove (a+b)² = a² + 2ab + b² visually using area decomposition.
Open visualizerQuadratic Graph
Explore how a, b, c control the shape, roots and vertex of y = ax²+bx+c.
Open visualizerCoordinate Geometry
1 visualizer
Geometry
4 visualizers
Angle Explorer
Connect a counterclockwise full-turn angle measure with zero, acute, right, obtuse, straight and reflex classifications.
Open visualizerTriangle Angles
Verify that interior angles of any triangle always sum to 180°.
Open visualizerParallel Lines
Verify corresponding, alternate interior, and same-side interior angle relationships across all eight angle regions.
Open visualizerCircle Theorems
Verify three fundamental circle theorems interactively.
Open visualizerTrigonometry
1 visualizer
Statistics
1 visualizer
Statistics & Probability
1 visualizer