Math lessons
Lesson 1: Introduction in the coordinate system
Lesson 2: Substraction of fractions with the same denominators
Lesson 3 Natural numbers
Lesson 4: Polygons
Lesson 5: Geometrical shapes – properties
Lesson 6: Whole numbers
Lesson 7: Rate and ratio
Lesson 8: Natural numbers 2
Lesson 9: Triangles and its Properties
Lesson 10: Equations of 1st degree