1, teaching students how to compile multiplication formulas. Don't present the ready-made multiplication formula to students sentence by sentence, but in the process of learning the formula, let the students understand that the first two digits of the formula are two multipliers, the smallest one comes first, and the product is two digits, so as to get rid of the "de", let the students participate in the activities of compiling the multiplication formula, experience their own methods of compiling the multiplication formula and understand the significance of the multiplication formula. At the same time, when beginners learn formulas, they can compare each sentence with the corresponding pictures and tell what each formula is. ?
2. Memorize by exploring laws. In the process of finding the law, students gradually feel the relationship between two adjacent formulas, so that students can remember the multiplication formula more flexibly. For example, if you remember 368, how much can you think of 466? How much can a second-rate think? Why is this happening? It is very important for children to understand the relationship between these two formulas. ?
3. Memory by comparison. Some confusing formulas can be listed directly by comparison, so that students can distinguish memory. Such as: 4624 and 6742, such as 594 15 and 6954, 796 13 and 4936. ?
4. Use story memory. Stories are popular with students, and some formulas are special. We can use stories to help us learn to remember. For example, Tang Priest and his disciples experienced 81 difficulties in the process of learning Buddhist scriptures. the Monkey King changed in 1972, and Pig Bajie had only half the mana. 1936. When meeting a monster, the Monkey King willy-nilly waved a golden hoop. "The multiplication formula of 9" can also use "finger memorization" to help us remember. "Finger memorization", hands spread evenly. When reciting the formula of "Nine in Nine", bend the little finger of your left hand, and there are nine fingers on the right side of the bent finger. This "9" indicates that the product bit is 9; When reciting "298", bend the ring finger of the left hand, and there is a heel finger on the left side of the bent finger. This "1" represents the number 1 on the tenth digit of the product, and there are eight fingers on the right side of the bent finger. This "8" represents the number 8 in the single digit of the product, which is "298", and so on. Counting from left to right, the first finger bends to represent the number nine, the left side of the bent finger represents the tenth digit of the product, and the right side represents the number of the unit of the product. Students are interested and remember the prison. ?
5. Strengthen memory. When students compile the multiplication formula, erase the second half of the product and formula in the formula, and then let the students talk about the formula. Also, students can find formulas that are difficult to remember and ask them to read each formula twice. Then show all the formulas in turn and remember them as a whole. ?
At the same time, in the process of learning formulas, students can preview and look back in advance for the more difficult multiplication formulas of 7, 8 and 9 to disperse the difficulties. After writing multiplication formula, we should combine memorizing formula with using formula, let students "remember" in "use" and "use" in "remember", and ask students to look at formula and say four related formulas, and practice formula and formula together repeatedly. I believe they can remember the multiplication formula.