1. Prepare a blank drawing paper and write the word "operation method" in the center of the drawing paper.
2. Write the names of additive commutative law, additive associative law, multiplicative commutative law, multiplicative associative law and multiplicative distributive law under "algorithm".
3. Draw the corresponding mind map under each algorithm. You can use lines, arrows, graphics and other elements to express the relationship between nodes.
4. Mark the letter representation of each algorithm in the mind map, such as a+b=b+a, (a+b)+c=a+(b+c), a×b=b×a, (a×b)×c=a×(b×c), (a+b).
Finally, add some decorative patterns on the edge of drawing paper to make the whole handwritten newspaper look more beautiful.
Content and essence of operation law:
1. According to the definition of operation, the algorithm can be deduced.
Algorithm is an algorithm abstractly summarized by observing, comparing and analyzing some equations. This process belongs to the induction from concrete to abstract and from special to general, which embodies the basic characteristics of reasonable reasoning.
However, from the perspective of knowledge logic, the definition of algorithm and related operations are accompanied by each other. When mathematicians define four operations, they need to consider whether the corresponding operation rules can be logically deduced from the definition.
2. The definition and algorithm of operation are the basis of exploring related calculation methods.
A method, procedure or way to complete an operation and get a result, which is usually called an operation method or a calculation method. It is the so-called "algorithm", which uses relatively accurate, standardized and easy-to-understand written language to express the operation procedures and key points required by the operation method, or to attribute the current operation to the relevant operations that students have mastered earlier.