Mathematical mind map is an effective learning tool, which can help students sort out and summarize mathematical knowledge and improve their thinking ability and concept understanding ability. In the mind map of the first unit of the first volume of the fourth grade, we can divide several important concepts and contents with "the understanding of numbers and integers" as the central theme.
Branch one-numerical classification
Under this branch, you can draw a big circle to represent "number", and then branch out several small circles from this circle, each small circle represents a classification of numbers, such as natural numbers, integers, positive numbers, negative numbers and so on. A short text explanation can be added next to each small circle for easy understanding and memory.
Representation of Branched 2- Number Axis and Integer
This branch can involve the representation of number axes and integers. You can draw a number axis to indicate the positions of positive and negative numbers, and then draw some arrows pointing to integers on the number axis, and add the corresponding numbers to represent them. At the same time, the concept and usage of integers can be explained by words.
Comparison and operation of branch 3- integers
Under this branch, we can discuss the comparison and operation rules of integers. You can draw an equal sign and an unequal sign to indicate the comparison relationship between integers, and draw some operation symbols for addition and subtraction, plus numerical examples, so that students can understand and master the comparison and operation methods of integers.
Application of Branched Four Integers in Practical Problems
This branch can show the application of integers in practical problems. You can draw some images of practical problems related to integers, combined with text descriptions, such as temperature changes, altitude and so on. Let students know the application scenarios of integers in real life.
abstract
Mind mapping is a learning tool to integrate and summarize concepts, and it is also very effective in mathematics.
Taking "Understanding Numbers and Integers" as the central theme, this paper helps students to better understand and master the mathematics knowledge of Unit 1 in the first volume of Grade Four through the classification of expenditures, the representation of number axes and integers, the comparison and operation of integers, and the division of the application of integers in practical problems.
Through the combination of images and words, students can understand and remember concepts more clearly and improve their mathematical thinking ability and problem-solving ability.