52:06

Powers and exponents - algebra - 1st prep - 2nd term

37:24

2nd prep - factorizing quadratic trinomial - 2nd term - algebra

29:57

Solving two equations of 1st degree in 2 variables(part1)- algebra - 3rd prep - 2nd term

24:08

Finial revision- algebra - 3rd prep - 1st term

01:01:31

DIMOND 30 questions (essays) - geometry- 3rd prep- 1st term

51:35

GOLDEN 60 questions (choose) - geometry- 3rd prep - 1st term

26:07

Solve model 6 - 1st prep - 1st term

30:57

Solve model 5- 1st prep - 1st term

33:05

Organizing data - 1st prep - statistics- 1st term

37:20

Exercise on The coordinates- 1st prep - geometry- 1st term

29:06

The coordinates- 1st prep - geometry- 1st term

15:11

2nd prep - the triangle inequality- geometry- 1st term

20:58

2nd prep - comparing the sides of the triangle- geometry- 1st term

19:37

2nd prep - comparing the angles of the triangle - geometry- 1st term

31:49

Polygon- 1st prep - 1st prep- geometry-1st term

36:10

The quadrilaterals part 2 - 1st prep - geometry- 1st term

44:51

The quadrilaterals part 1- 1st prep - geometry- 1st term

32:56

The triangle - 1st prep - geometry- 1st term

31:00

The variation- 3rd prep - algebra - 1st term

20:26

2nd prep - the slope of straight line- algebra - 1st term

34:01

The parallelism- 1st prep - geometry- 1st term

21:17

The relation between angles part two - geometry- 1st prep - 1st term

43:08

The equation of straight line - 3rd prep - geometry- 1st term

55:57

The angle / the relation between angles - 1st prep - geometry- 1st term - part 1

27:28

2nd prep - relation between two variables - 1st term - algebra

22:53

2nd prep - the corollaries of the isosceles triangle- 1st term

24:39

2nd prep - the converse of the isosceles triangle- geometry- 1st term

33:17

The slope of the straight line- 3rd prep - geometry- 1st term

59:29

The linear equation- 1st prep- algebra- 1st term

26:43

The coordinates of the mid point of a line segment- 3rd prep - geometry- 1st term

46:34

Distance between two points- 3rd prep - geometry- 1st term

34:41

Mathematical expressions/formulas - 1st prep - algebra- 1st term

30:28

2nd prep -Solving equations and inequalities from 1st degree - algebra - 1st term

13:37

Application on the real numbers(part2)- 2nd prep - algebra Lesson one- 1st term

35:39

Adding and subtracting algebraic expressions - 1st prep - algebra Lesson one- 1st term

35:59

3rd prep - ratio and proportion-part 2 -property 5-1st term-algebra

42:31

3rd prep -The continued proportion - lesson 2- algebra - 1st term

32:35

Application on the real numbers - 2nd prep - algebra Lesson one- the cube / the cuboid / the circle

22:50

Operations on the cube root of- 2nd prep - algebra - 1st term

23:58

Operations on the rational numbers-part 2 - algebra- 1st prep - first term

23:36

3rd prep- the ratio and proportion- part 1 - algebra - 1st term

30:07

The two conjugate numbers- 2nd prep - algebra - lesson 7 - 1st term

43:54

Operations on the rational numbers- part 1-lesson 5-algebra-1st prep-1st term

39:30

Operations on integers- lesson 4 - 1st prep -algebra-1st term

31:51

Part two -operation on sets - 1st perp - algebra -1st term

43:14

The main trigonometry ratios to some angles - 3rd prep - trigonometry- first term

23:06

The isosceles triangle-2prep - geometry - lesson 3-1st term

29:07

Median of triangle- part 2 - geometry-2nd perp-1st term

29:57

The sets part 1 - 1st prep - algebra - 1st term

35:16

The main trigonometry ratios - 3rd perp - trigonometry -1st term

33:25

2nd prep - the median of triangle - geometry- 1st term

21:42

Application on proportion-part 2- 1st prep-algebra -1st term

29:39

2nd perp - operation on square root - algebra - 1st term

30:54

The polynomial function part 3 - quadratic function- algebra - 3rd prep - 1st term

28:55

2nd prep - operation on real numbers - algebra - 1st term

47:34

Application on proportion -part 1 - 1st prep - lesson 2 -algebra-1st term

35:31

Meaning of proportion-1st prep-algebra -1st term

38:04

2nd prep - the intervals- algebra - 1st term

32:38

The polynomial function part 1 - algebra- 3rd prep - 1st term

29:41

The polynomial function part 2 - linear/ constant function- algebra-3rd prep - 1st term