Score:
1, definition and meaning.
2. Concepts and representations of numerator and denominator.
3. Addition and subtraction rules and calculation methods of scores.
4. Rules and calculation methods of fractional multiplication and division.
Graphics and geometry:
1, the concept and representation of straight line, ray and line segment.
2. The concept and classification of angles (acute angle, right angle and obtuse angle).
3. The concepts of parallelism and verticality and their determination methods.
4. Concept and calculation method of area and perimeter.
The meaning and essence of decimals;
1, the definition and classification of decimals (integers, decimals and fractions).
2. The relationship between decimal counting unit and ratio.
3. The basic properties and manifestations of decimals.
4. Four arithmetic and calculation methods of decimals.
Measurement of quantity:
1, understanding and conversion of time units (hours, minutes, seconds, etc.). ).
2. Understanding and conversion of mass units (grams, kilograms, etc.). ).
3. Understanding and conversion of length units (meters, centimeters, etc.). ).
Possibility and probability:
1, the concept and expression of possibility.
2. The concept and calculation method of probability.
3. The concept and classification of random events (definite events and uncertain events).
The role of mind mapping
1, divergent thinking. The function of divergent thinking in mind map is to help us to diverge and organize our thinking, and we can keep the flexible form of editing and organization at any time. Through mind mapping, we can visualize our thoughts and ideas, and we can modify and organize them at any time.
2. Stimulate people's rich associations. By stimulating people's rich associative power, mind map can show philosophical thinking modes without obstacles, including continuity, profundity, criticism, divergence, associative thinking, analogical thinking, image thinking, inspirational thinking and dialectical thinking.
3. Make plans and make effective progress. Making a plan and promoting it effectively is an important function of mind mapping. Mind mapping enables us to make scientific and effective plans, plan and arrange according to the brain thinking mode, and at the same time, we can clearly analyze and think about problems and finally make decisions.
4. Cultivate creative thinking and innovative ability. The development of creative thinking and innovative ability can be realized by using divergent thinking. By drawing a mind map, we can clearly show all aspects of divergent thinking, thus stimulating innovative inspiration and creativity.