Liu Liu _ Sina blog

 How to observation and evaluation
a, what is observation and evaluation?
Classroom observation and evaluation is the control objectives, teachers and students in the classroom teaching activities and these activities by the changes caused by value judgments. Observation and evaluation of teaching , a regular process of teaching and research activities of mutual learning between colleagues, to discuss observation and evaluation; a school leadership diagnostics, check the observation and evaluation; a higher level of observation and evaluation experts or judges, etc.. not the purpose of evaluation In order to prove, but it improved.
Second, observation and evaluation of the significance of
observation and evaluation of teachers can mobilize the enthusiasm and initiative to help and guide teachers to sum up teaching experience, and improve education standards, improve teacher Literacy Education; for teachers to improve teaching practice, to enable teachers to access information from multiple sources, and continuously improve the teaching level, changing the concept of teacher education, to promote the teaching of teachers vividly, in the teaching process gradually formed its own unique style of teaching. < br> Third, the observation and evaluation principles
1. Class Evaluation should adhere to the the development of students oriented. Robotics Competition which a more popular mandate, the black line is the game many of the tasks which often occur, I think the black line on this issue to discuss with you at once.
First of all, a sense of taking a single black line of light, which is a relatively simple task of walking the black line is the most basic, this is needed is a sense of light as the light sensor to distinguish the value. According to the black lines and white space of the different light of different values ​​to control the car to walk. For example: car into the white areas of light and then the program so that the car entered the black line, and vice versa.

car to go along a black line, objective analysis:
First, analyze the results you need:
1. faster;
2. walk along the black line.
Second, the car parts necessary
1. Motor
2.
three light sensors, how to improve the performance of various parts of
1. increase in speed, you can use the method:
1) use the gear or gear speed;
2) use of larger wheels are available to fast speed;
3 ) in combination with the above two
the help of the great master to complete the basic set up. The effect I am pretty satisfied, at least not fall apart, huh, huh.
Fll Life Sciences out of the video
Fll 2010 (Life Sciences ) out the video
maximum load the module structure of the fixed layer assembly: chassis, module, load
5.1 Introduction
now that the motor and sensor, the geometric structure and the transmission of these components together and build some more complex things. making robots be creative, so do not introduce any general rules and style guide, because there would not be able introduction. briefly introduce some build skills in designing your own robot or robot system may be instructive .
5.2 blocks fixed layer
learned standard, level
4.5 temperature sensor
This is an optional sensor, it is not set inside the machine provides, but you can easily shop online or by LEGO be the family shopping. we said, it's just a sensor, you can not to it. While it may bring you some fun, when you drink too hot or too cold, the robot can prompt you. temperature sensor is not can be part of the activities, only a small round aluminum tube (Figure 4.9). According to the program you used in the icon, you can get to the camera and Fahrenheit temperature. It can be measured between -20 ℃ to 70 ℃ The
4.1 Introduction
drive motor through the gears and pulleys that allows you to build a robot to move, they just like a mobile robot leg and arm muscles. Also, you can use the sensors to equip your robots, they just like a robot's eyes, ears and fingers. Robot Kit contains two sensors: touch sensors (two) and photoelectric sensors. In this major is to describe their characteristics, for the other sensors can be individually purchase, such as: angle sensors and temperature sensors. Each device has its specific role, you will because of their powerful and
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making Lego robots introduced the 4 steps
The first step: Using Lego Robot RCX micro computer design (hardware assembly)
RCX microcomputers developed by MIT, is the core of Lego robot parts. ROBOLAB software and using the RCX, students can create, structures, programming a real robot, it sports, do the movements, and even themselves to . There are many sensors to choose from, such as touch sensors, photoelectric sensors, temperature sensors, angle sensors.
second step: the PC, the robot programming (software part of it how to move)
as written control procedures ROBOLAB RCX software is a simple, intuitive, easy to learn programming environment, based on National Instruments LabVIEW, popular in the field of measurement and automation-based graphical programming software development. ROBOLAB software with all common programming environments , such as C / C + + or VisualBasic and other software. on the computer writing a good program for the robot, the program once downloaded to the RCX, 机器人 got away from the computer, according to program instructions, input information in accordance with the surrounding environment to make judgments, decisions what to do next. complete intelligent. Of course, if the robot fails to act pre-designed, that does not
programming has been converted to JPG images, uploaded to the album, please see.
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