inverse proportion function

pythagorean theorem

quadrilateral

data analysis

Fraction includes fractional operation and fractional equation.

Inverse proportional function includes practical problems and inverse proportional function.

Pythagorean theorem includes the proof of Pythagorean theorem and the inverse theorem of Pythagorean theorem.

Quadrilateral includes parallelogram and special parallelogram and trapezoid.

Data includes data representation and data fluctuation.