# Japan Mathematics Lessons

## JP1 Finding the Value of an Angle

This eighth grade mathematics lesson focuses on two-dimensional geometry - in particular, parallel lines and angles. It is the third lesson in a sequence of seven lessons on this topic. The lesson is 50 minutes in duration. There are 31 students in the class.

## JP2 Changing Shape without Changing Area

This eighth grade mathematics lesson focuses on two-dimensional geometry - in particular, the areas of triangles between parallel lines. The lesson is 50 minutes in duration. There are 35 students in the class.

## JP3 Solving Inequalities

This eighth grade mathematics lesson focuses on linear inequalities in one variable. It is the first lesson in a sequence of seven on this topic. The lesson is 52 minutes in duration. There are 34 students in the class.

## JP4 Solving Inequalities

This eighth grade mathematics lesson focuses on equations that are inequalities. It is the seventh lesson in a sequence of eight on this topic. The lesson is 50 minutes in duration. There are 34 students in the class.