For example: the first volume of fifth grade mathematics, Shanghai Education Edition and Beijing Normal University Edition, teaching material analysis.
Shanghai Education Edition: 1. Review and improvement: symbolic representation of numbers, decimal //2, decimal multiplication and division: decimal multiplication by integer, decimal multiplication by decimal, addition multiplication, decimal multiplication, integer multiplication extended to decimal division, cyclic decimal, calculator calculation, rounding of product and quotient.
Beijing Normal University Edition:
1. Fractional division: 1, careful calculation, cleaning, 3. Who calls for a long time, 4. RMB exchange, 5. Can it be eliminated? 6. Investigate "domestic garbage" //2. Axisymmetry and translation: 1. Axisymmetric identification (1) 2. Axisymmetric identification (2) 3. Translation recognition.