Because when the divisor is a two-digit number, the change of quotient is not fixed, but changes according to the size relationship between dividend and divisor.
Divider is the calculation step of two-digit division: 1, starting from the most significant bit of dividend and dividing by. 2. Look at the first two digits of dividend first. If the first two digits are not divided enough (smaller than the dividend), look at the first three digits of the dividend. Write your business in a place other than where you go. 4. The remainder after each division operation is less than the divisor.
Mind mapping is a practical auxiliary tool, which can effectively express divergent thinking. By paying equal attention to graphics and text, the subordinate relationship between topics at all levels is expressed in a hierarchical way, which has been applied to many industries and fields.
Among them, the rise of electronic teaching makes the teaching methods diversified. Compared with the traditional teaching methods, the combination of graphics and text can often stimulate students' interest in learning, while mind map is to organize, summarize and summarize knowledge points by using the hierarchical relationship between graphics and text.
The role of mind mapping:
1. Note-taking: When you need to take notes at ordinary times, use mind map to take notes, write down key words around the central theme, and then simply extract relevant contents, connect them with relationship lines and sort them out. Don't need to take long notes, don't concentrate, and waste time.
2, review: the existing knowledge and materials are sorted out with mind maps, the structure is clear and clear, put an end to rote learning, more understanding and memory. After all, I organized it with my heart When I see each node, I can remember how the related content is related.
3. Collaboration: In this process, everyone's opinions are taken into account, which can enhance the team's sense of belonging and deepen communication among team members. When we think together, we can produce more ideas, and then ideas will produce ideas.
4. Decision-making: When we want to make a decision, especially for those who have difficulty in choosing, we can make rational choices by using mind maps. Use mind map to analyze all aspects of options, whether it is factors, goals, restrictions or consequences, and make a comparative analysis of each item, and finally draw the best conclusion, which can be used as a reference for decision-making.