First, the scientific activity "classification level" (collection)
Second, the moving target:
1. The multi-level classification can be performed according to different features of the object.
2. Studies for recording numbers and symbols.
Third, the activities to prepare:
Material preparation: teachers PPT, child care operating table, "according to the classification features fruit," "fruity characteristics according to the classification level" pen.
Fourth, the active process:
(A) a "supermarket opened" import scene, review classification according to characteristics of the object.
Introductory phrase: kids, baby supermarket to be opened. Today, many of the goods to the supermarket bosses are busy coming. Please help kids organize the goods, to facilitate customers to buy.
(B) child care operation, "according to the characteristics of the fruit category", try to record the classification results.
Introductory phrase: Now let's take a sort of fruit counter it please you to choose a fruit, take a look at what this fruit different places, how can sub-let customers see at points of law and the separation of each! the number of fruit. Try and recorded on the recording sheet with the symbols and numbers.
(1) providing teachers operating requirements.
① After selecting one of the characteristics of fruit classification.
② record their classification symbols and numbers.
③ first classification good child care, whispered exchanges with their peers classification.
(2) Children grouping operation, teachers tour guide.
The method focuses observe children to fruits and classification of recorded cases of young children.
(3) a method of sharing and exchange of classified records.
Introductory phrase: what fruit you score points according to how what features to divide???
Summary: The features according to the size of the apple points, divided into large and small apples Apple.
(C) child care operation, "according to the feature level classification of fruits", the initial perception of hierarchical classification.
Introductory phrase: just kids help the manager to classify the fruit, the manager wanted to separate them in detail some of the more could you help the manager do?
(1) teachers make demands.
① two features selected fruit is classified.
② record their classification symbols and numbers.
③ first classification good child care, whispered exchanges with their peers classification.
(2) child care operation, teachers tour guide.
Whether young children can focus on observation fruit for secondary classification and case records.
(3) The exchange of young children and their classification record table plate.
Question: how do you score?
Summary: The Apple points, press color component, red apple 5, green apple 4; then the size of points, three large red apple, two small red apple, green apple a large, small green Apple 3 and so on.
(D) extending activity.
Introductory phrase: You really great, the manager helped a lot. The manager of the snack table, there are many graphic cookies need to help kids by Category. Chen will they get the science zone, the children will be together to help the biscuits are classified in two or three ways, right.