The first chapter is about unary inequality and unary linear inequality system 1.

2. Basic properties of inequality 3. Solution set of inequality

4. One-dimensional linear inequality

5. One-dimensional linear inequality and linear function 6. Group review and thinking review of one-dimensional linear inequality

The second chapter is similar to the number 1. The ratio of line segments is 2. golden section

3. Graphics with the same shape. Similar polygon 5. Similar triangles.

6. Explore the conditions of triangle similarity 7. Measure the height of the flagpole

8. Perimeter ratio and area ratio of similar polygons. Zoom in and zoom out of graphics review and thinking review topics. Learn to make an eye chart.

Chapter III Factorization

1. Factorization 2. Common factor method 3. Review and think about the fourth chapter score 1 by formula method. mark

2. Multiplication and division of fractions 3. Addition and subtraction of fractions. Review and reflection on fractional equation.

Chapter V Data Collection and Processing. Time to do housework every week. Data collection 3. Frequency and frequency 4. Data fluctuation review and reflection review