First, the first volume of the third grade of mathematics Unit 1 Mind Map:
1, Know Time, Minutes and Seconds: Know the concepts of time, minutes and seconds, and know the relationship between them.
2, reading and writing time: can read and write hours, minutes and seconds, including knowing the time represented by the hour hand, minute hand and second hand.
3. Time calculation: Knowing that 1 hour =60 minutes and 1 minute =60 seconds, we can simply calculate the time according to the progress rate between time units.
4. Time unit conversion: Time, minutes and seconds can be converted.
Second, the third grade of mathematics Volume I Unit 2 Mind Map:
1, knowing the integer: 10 thousand is ten thousand.
2. Reading and writing: write Chinese characters when reading and Arabic numerals when writing. No matter whether there is a zero or several zeros at the end of a number, this zero does not need to be read. There is a zero or two consecutive zeros in the middle of a number. You only need to read a zero.
3. Comparison of numbers: Numbers with different digits are larger, and those with more digits are larger. Numbers with the same number of digits are compared one by one from the high place.
Find out how many times a number is. Multiplication: whoever has the best number of dozens or more will go to the previous one. Any number multiplied by 0 equals 0.
Matters needing attention in drawing mind map
1. Make the theme clear, simple and clear: Before drawing the mind map, first make the theme clear and determine the knowledge points and concepts to be summarized. Mind mapping should be simple and clear, not too complicated or lengthy. The keywords on each branch should be as short as possible, and don't contain too many details and descriptions.
2. Determine branches: According to the theme, determine the number and content of branches. According to the chapters, knowledge points and examples in the textbook, it can be divided into different branches, and the relationship between them is shown in the form of branches.
3. Summarize with keywords: on each branch, summarize the contents of the branch with concise keywords or phrases. This can help students understand and remember knowledge points faster, and at the same time avoid writing too much text on the mind map.