First prize of pictures and practice of self-made teaching AIDS in primary schools

The first prize of pictures and practice of self-made teaching AIDS in primary schools is as follows:

Yuan is a science teacher at Xinxu Primary School in Sanxiang Town. Main awards: the first prize of Guangdong Primary School Science Teachers' Experimental Operation and Innovative Skills Competition in 20 19, the innovative experiment award, and the first prize of the National Excellent Self-made Teaching Aids Exhibition and Evaluation Activity in 2026 54 38+09.

Introduction to the work:

"Gear transmission series innovative teaching AIDS" respectively include self-made grinding wheel cutting machine model, multifunctional gear transmission explorer, clock model and correction belt model. With the help of self-made grinding wheel cutting machine, the working principle of real grinding wheel cutting machine is visualized, so as to create real problem situations and stimulate students' interest in inquiry.

The gear teeth are marked with numbers, which is convenient for students to accurately count the number of teeth of two gears. With the help of raspberry pie and Hall sensor, the revolutions of two gears can be accurately read out. By using information technology, the problem that students can easily count the number of revolutions because the pinion rotates too fast is well solved, and the combination of qualitative and quantitative is realized, which is helpful for students to explore the characteristics of gear transmission efficiently and intuitively.

The clock model helps students intuitively understand how the clock in life realizes the different speed relationship between hours and minutes with the help of a power source, and can also guide students to understand the necessity of multi-stage gears in life production. The model of correction belt visualizes the working process of correction belt through simulation amplification, and at the same time reflects the application of gear transmission and belt transmission, paving the way for students to learn other transmission methods in the future.

Wu Qiang is a science teacher at Duifu Primary School in Huangpu Town, Zhongshan City. Main awards: the first prize of the exhibition and evaluation of excellent self-made teaching AIDS for primary and secondary schools in Guangdong Province in 2020, and the first prize of the exhibition and evaluation of excellent self-made teaching AIDS for primary and secondary schools in China in 20021year.

Introduction to the work:

The relative motion demonstrator consists of two wireless cameras, three self-made power cars and two tablet computers. The teaching aid adopts wireless camera to simulate human eyes, and the camera is installed on the power car. Through the different motion states of the car, the pictures taken by the camera from time to time simulate the phenomena seen by human eyes, and are displayed to the experimental students through two tablet computers.

In this way, the problem that the traditional relative movement teaching only depends on students' imagination to understand relative movement is solved, so that the original relatively abstract and incomprehensible relative movement is presented to students intuitively, and the abstract relative movement is turned into a visual field experiment, which makes it easier for students to understand the different states of relative movement.

At the same time, the relative motion demonstrator can also simulate all relative motion scenes by changing the different positions of two wireless cameras, and can also realize sports experiments such as the comparison of relative speed and the measurement of automobile motion speed.