1. Supporting teaching materials: First of all, we must ensure that the teaching AIDS are matched with the teaching materials used in the school. This can ensure that the contents in the supplementary books are consistent with those in the textbooks, and help students better understand and master the knowledge points.
2. Difficulties: Choose appropriate teaching AIDS according to students' mathematics level and learning ability. If students have a weak mathematical foundation, they can choose teaching AIDS with moderate difficulty to gradually improve their mathematical ability; If students have a good foundation in mathematics, they can choose a slightly more difficult supplementary book to challenge their learning ability.
3. Quantity and quality of exercises: The quantity and quality of teaching aid exercises are also important factors in the selection. Proper exercises can help students consolidate their knowledge and improve their ability to solve problems. At the same time, we should ensure the quality of exercises, and the topics should be targeted, diverse and practical, which can help students cultivate their mathematical thinking and problem-solving ability.
4. Teaching methods and skills: Teaching AIDS should include some teaching methods and skills to help students better understand and master mathematics knowledge. For example, it can provide some problem-solving ideas, memory methods and learning skills to help students improve their learning effect.
5. Reference evaluation and word of mouth: You can refer to the evaluation and word of mouth of other parents and students to understand the quality and applicability of teaching AIDS. Relevant information can be obtained through online shopping platforms and educational forums.
In short, when choosing teaching AIDS for grade three mathematics, we should comprehensively consider the collocation of teaching materials, the difficulty, quantity and quality of exercises, teaching methods and skills, reference evaluation and word of mouth, and choose teaching AIDS suitable for students to help them learn and master mathematics knowledge better.