Activity objectives:
1, initially aware of the conservation of volume, interested in the conservation of quantity.
2, can use a variety of senses, hands and brains to explore the problem of volume conservation.
3. Willing to participate in discussions and exchanges, able to ask questions boldly and express different opinions.
4. Cultivate children's spirit of trying and develop children's agility and logic of thinking.
5. Interested in participating in math activities.
Activity preparation:
1. Several transparent bottles and cups of different sizes and shapes, and several cups of the same size.
2, bee badge (red, yellow, blue, green, orange), "Little Bee" video material, round iron absorption.
Activity flow:
First, the theme of the "bee picking honey" game is introduced.
Children go to different places to "collect flowers and honey" according to the color of badges.
Second, children's operational exploration activities
1, put the honey of each group together to observe and discuss:
(1) Which group of bees collect the most honey, and why?
(2) Show the record form, and children can freely choose the items to vote.
(3) Think about the best way to compare which group has more honey. Which group has less honey? Still as much? (Children discuss freely).
2. Children explore, think and feel the conservation of volume.
(1) The teacher provides cups of the same size. Please ask one child in each group to pour his honey into the cup to see which group has more honey. Which group has less honey? Still as much?
(2) Discussion: What do you find when you pour each group of honey into a cup of the same size? Is the amount of honey the same in each group? Why did everyone just say that different groups of bees collect different amounts of honey? Help children understand that the water level of the bottle is related to the thickness and size of the bottle.
3, children hands-on operation, to further understand the conservation of volume.
(1) Each child chooses a bottle of different size and shape and observes the difference of each bottle.
(2) The teacher provides the child with a cup of the same size and injects the same amount of "honey" into the cup. Comparative discussion: Is there as much honey in the cup?
(3) Let the children pour the honey in the cup into their respective bottles, and observe and discuss: Is there as much honey in the bottles?
(4) Summary: The honey in our cups has not increased or decreased. No matter what kind of container we pour, the water level is high or low, and the total amount of water has not changed. So, the honey in the bee bottle is the same.
Third, the game activities: little bees, buzzing.
Activity expansion:
Please share the honey collected by bees with other small animals.
Teaching reflection:
Lack of passion in the teaching process, mathematics itself is boring, so when teaching new knowledge to children, teachers need to use their passion to drive children's learning, and pay attention to this aspect in future teaching.