Variant practice is a necessary condition for learning procedural knowledge represented by production. In teaching, teachers' carefully designed variant exercises are of great significance to avoid a lot of repeated exercises, eliminate questioning strategies, reduce students' academic burden and improve their ability to solve practical problems.
Of course, it is best for teachers to present multiple variants continuously, so that the provided variants can be stored in students' working memory at the same time.
The key way to transform knowledge into skills. In concept learning, show students the positive and negative examples of concepts for students to distinguish and judge; In rule learning, it refers to presenting students with various changing problem scenarios and asking them to solve them with rules.
Extended data:
Classification of different exercises:
1, graphic variant
Graphic variant: it refers to changing the graphic, reflecting the spatial shape and position relationship of the graphic with the help of the change, making the graphic move, guiding students to think and discuss, and making students really grasp the internal relationship between knowledge.
2. Equivalent variants
Equivalent variant: refers to a kind of question type with basically the same conditions and conclusion framework, similar form and the same substance. In the means of variant, the proposition of condition (conclusion) equivalence is often used to replace condition (conclusion) or formally equivalent variant.
3, ideological variation
"Changing methods and thinking" is the key to training variant thinking. Let students explore shortcuts to solve problems through training, so that the flexibility and broadness of thinking can be continuously developed. It is necessary to make students enter a good broad thinking state through repeated and gradual expansion training.
Baidu encyclopedia-variant exercises