Geogebra is free interactive software that combines geometry, algebra, graphs, statistics and calculus. It can be downloaded from geogebra.org. Geogebra contains tools that help explain mathematical and scientific concepts from elementary to university level. It enhances understanding through interactive models and representations. With Geogebra, students can explore concepts aligned with common core standards like graphing exponential and logarithmic functions. Geogebra is easy to use but requires learning commands and tutorials. It is recommended for teaching and learning multiple approaches to mathematics.