2. Appreciate all kinds of rulers (ruler, triangular ruler, tape measure, etc. ) and understand their different functions.
3. Germinate interest in measurement.
4. Cultivate children's comparative judgment ability.
5. Develop children's logical thinking ability.
Activity preparation: 1. All kinds of rulers (ruler, triangle ruler, tape measure, etc. ) equals the number of children.
2. Forms, pens and cartons for measurement
Activity process: first, asking questions leads to thinking.
Teacher: Do you know how wide and long the desks, chairs and blackboards are in the teacher's classroom?
Teacher: So if I want to know how long and wide they are, who can help me? (Young: Ruler)
Teacher: Now please observe what is on the ruler. What's a ruler for? Where have you seen a ruler?
The teacher summed up: there are numbers and scales on the ruler, one by one; A ruler is a tool that can be used to measure the length of an object.
Second, the demonstration and operation
Teacher: Please take out the ruler you have prepared. Now please count the small squares (that is, scales) on the ruler. After counting, please try to measure the length of the pencil case. Measure how many small squares are closed and how many small squares are wide, and record your measurement results on paper.
Teacher: Now that you have measured it, I'll ask some children to tell me your measurement results.
Teacher's summary: when measuring, the ruler should aim at the starting point of the measured object, mark it in time and continue the measurement. Remember how many squares you have measured, and then add up the data of several measurements, and the final result is the measured length of the object.
Third, children think and ask questions.
Teacher: Let's discuss why the length and width of pencil boxes measured by children are different. (Guide children to summarize: the measurement results are different with different pencil box sizes. )
Teacher: Now you can measure other objects with your ruler and the method the teacher just taught you.
Fourth, the problem migration, appreciate all kinds of rulers (ruler, triangle ruler, tape measure, etc. ) and understand the role.