Money Pieces
Count and make change with US coins and bills in an interactive workspace.
Jackson Smirnov
Teaching on iarepo since May 2026 553 published resources opened 7,752 times
Published resources
Page 23 of 24
Number Line
Jump, slide, and bounce along a number line to model addition and subtraction.
Number Pieces
Work with base-ten blocks to model multi-digit operations visually.
Geoboard
Stretch bands around pegs to form shapes and explore area, perimeter, and angles.
Number Frames
Organize counters in frames of 5, 10, and 20 to develop number sense.
Pattern Blocks
Create geometric patterns and explore symmetry with colorful pattern blocks.
Algebra Tiles
Model algebraic expressions and equations with virtual algebra tiles.
Base Ten Blocks
Explore place value with interactive base-10 blocks. Drag and drop ones, tens, hundreds, and thousands.
GeoGebra Scientific Calculator
Full scientific calculator with fraction, trig, and stats functions.
GeoGebra CAS Calculator
Computer Algebra System — solve equations, factor, expand symbolically.
Probability Simulator
Run experiments with coins, dice, and spinners. Visualize distributions.
Human Body Map
Interactive anatomy explorer with organ systems overlay.
Bacterial Identification Lab
Use lab techniques to identify unknown bacterial samples.
Lizard Evolution Virtual Lab
Explore natural selection and adaptation in Anolis lizards across Caribbean islands.
2D Electromagnetic Simulation
Visualize electric and magnetic fields in 2D with interactive charges.
Ripple Tank Simulator
Visualize wave phenomena: interference, diffraction, and reflection in 2D.
Circuit Simulator
Build and analyze DC/AC circuits with resistors, capacitors, inductors, and more.
Diffusion and Osmosis
Simulate diffusion of molecules across a semipermeable membrane.
Intermolecular Attractions
Explore how molecular polarity affects intermolecular forces.
Phase Change: Molecular View
Watch molecules transition between solid, liquid, and gas phases.
Gas Laws: Pressure-Volume
Explore Boyle's Law with an interactive piston and gas molecules.
Resultant of Forces
Add two force vectors and find the resultant graphically.
Inclined Plane Forces
Decompose forces on an inclined plane with adjustable angle and friction.
Kepler's Laws of Planetary Motion
Visualize elliptical orbits and area law for planetary motion.