Unit 1: Location Unit 2: Fractional Multiplication

1, the meaning and calculation of fractional multiplication 2, solving problems 3, understanding the reciprocal unit 2: fractional division

1, the meaning and calculation method of fractional division 2, problem solving 3, the application of ratio and ratio unit 4: circle

1, understanding of circle 2, circumference of circle 3, area unit of circle 5: percentage.

1, the meaning and writing method of percentage 2, the reciprocity of percentage, fraction and decimal 3, solving the problem Unit 6: statistical pie chart

Unit 7 Mathematics Wide Angle Chicken and Rabbit in the Same Cage Unit 8: General Review

Among them, the fractional multiplication and division method, circle is the key!