1. Attach importance to providing students with familiar specific situations according to their existing experience and life experience to help them understand mathematics knowledge.

2. Increase the content combined with reality to help students understand mathematics in real life and feel the close connection between mathematics and daily life.

Second, teaching material analysis

This textbook includes the following contents: understanding of large numbers, hectares and square kilometers, measurement of angles, understanding of multiplying three digits by two digits, parallelogram and trapezoid, divisor divided by two digits, bar chart, wide angle of mathematics and general review. The understanding of large numbers, the division of three digits by two digits, the measurement of angles, and the understanding of parallelogram and trapezoid are the key teaching contents of this textbook.

Third, the teaching content.

This textbook is divided into nine units: understanding large numbers; Measurement of hectares, square kilometers and angles; Three digits multiplied by two digits; Parallelogram and trapezoid; Divider is the division of two digits; Statistics; Mathematical wide angle; Review regularly. The above unit covers four fields: number and algebra, space and graphics, statistics and probability (mathematical thinking method).

Fourth, the analysis of students' basic situation.

After the study in Grade Three, students' thinking has begun to transition from concrete thinking to abstract thinking, and their understanding of the surrounding things has also risen to a higher level than before. They have been able to understand things and solve problems by inductive methods, and students have already had preliminary mathematical knowledge.

Verb (abbreviation of verb) teaching goal

1. Know the counting units of "100,000", "million", "billion", "billion" and "hundred billion", know the natural number, master the decimal counting method, read and write numbers within 100 million and above 100 million according to several levels, and find the divisor of a number by rounding as needed.

2, master the conversion between hectares and square kilometers.