The drawing of mathematical mind map in the first volume of the third grade can start from three aspects: the understanding of numbers, the operation of numbers and the commonly used quantities.
Understanding of 1 sum number
We need to let students master the concept of numbers, including integers, decimals, fractions and percentages. We can start with a world with many central themes, and then divide it into three sub-themes.
Integer: Integers include positive integers, 0 and negative integers. We can take positive and negative integers as sub-questions, and then list their positive and negative numbers and 0 respectively.
Decimal: Decimal includes integer part, decimal point and decimal part. We can take the composition of decimal as a sub-topic, and then list examples of integer part, decimal point and decimal part respectively.
Fraction: Fraction includes numerator, denominator and fractional line. We can take the composition of fraction as a sub-topic, and then list examples of numerator, denominator and fraction respectively.
2, the number of operations
We need to let students master the addition, subtraction, multiplication and division of numbers. We can start with a central theme with four operations and then divide it into four sub-themes.
Addition: Addition can be combined with the example in the first knowledge point.
Subtraction: Subtraction can also be combined with the example in the first knowledge point.
Multiplication: Multiplication can introduce some tips and quick calculation methods of multiplication.
Division: Division can introduce some skills and fast calculation methods of division.
3. Ordinary quantity
We need to let students master the common concepts of quantity, including length, weight, time and angle. We can start with a central theme, the quantity in life, and then divide it into four sub-themes.
Matters needing attention in drawing mind map:
1, highlighting key points and core concepts. In a mind map, the most important information should be placed at the center or top, the secondary information should be placed at the secondary position or below, and so on. This can ensure that the priority of mind map is clear and the key points are prominent, which is convenient for users to find the core concepts quickly.
2. Use concise language and graphics. In mind mapping, you should use concise language and graphics to express information. Try to avoid using long and complicated sentences or difficult words, and use easy-to-understand language and graphics to convey information, which can make users understand the content expressed by mind maps more easily.
3. Keep your mind map clear and easy to read. In mind map, we should keep lines and colors clear and easy to read, try to avoid using too many colors and graphics, and avoid confusion and incomprehensible situations. In addition, we also need to pay attention to the typesetting and layout of mind maps to ensure that they are beautiful and easy to read and easy for users to understand and remember.