The most important, simplest and smallest technical product.
Manufacturing method: find one or two waste brush sticks, cut them into 8 sections with a saw, each section is 1.5 cm long, then find a thicker pen, saw it into a section with a length of 3 cm, and drill two small holes in one third. Paste these small bamboo knots with colored electro-optic paper and draw the villain's face on the top third of the thick knot. Use two black buttons as villain's feet; Then use big buttons or hard paper to cut into discs and stick them on the top of thick knots to make hats, and stick a little red wool in the middle of the top of the hats to make hats tassels. Bend one end of a wire into a small circle to make a right hand and a pike; Then bend a small circle with iron wire in the left hand, and thread these bamboo joints together with a nylon thread as in the third step. Find a piece of plywood or toilet paper, cut a long seam in the middle of the board, put it at the seam of the table, put the thread sleeve under the villain into the seam of the board, and manipulate the nylon thread from below with both hands so that the villain can move. Pull the thread loose and tight with both hands, and the villain can bend down and raise his hand together; Pull left and right, and the villain can move horizontally. If handled properly, this martial arts villain will use all kinds of tricks to let you appreciate his "superb" martial arts. If you can't find a suitable old brush rod, you can also use other sleeves with holes instead, or use kraft paper strips coated with paste to roll on the iron wire to make a homemade cardboard tube. The feature of editing this small technological production is a "small" word. Where is the "small" in scientific and technological production? (1) has a simple structure. Generally, it is good to assemble a few parts. (2) materials are easy to find. You can find many materials at home, such as empty paper boxes, toothpaste tubes, foamed plastics, cans, waste ballpoint pens, broken toys, iron wires, iron sheets and so on. (3) easy to process. The technical requirements of most projects are not high, and primary school students can master them. (4) spend less money. Some projects can even be free, without increasing the burden on families. (5) See quick results. Many projects can be completed in one day or half a day, which is in line with children's psychology and easy to popularize. 2. Activity form (1) Set up science and technology classes to make students generally receive science education and help them make. (2) Establish interest groups to help students make friends. (3) Encourage students to choose their own topics, complete small productions independently, and give appropriate guidance when necessary. 3. The activity content and counseling method (1) are made according to drawings, instructions or printed materials. (2) Small-scale scientific and technological production centered on cultivating creativity and developing intelligence. Mainly to make children's favorite toys, there are the following forms: ① The teacher introduces a small production method and scientific truth, and demonstrates it in kind to arouse students' interest, and students make their own innovations according to this truth. For example, "chicken eats rice" is a painting toy made by using the lever principle. When drawing, the two heads of the chicken move in the same or opposite direction, because the position of the stress point and fulcrum of the lever is different. After knowing the truth, the students designed and made many novel tie-rod toys, such as I went into space by rocket, went fishing with kittens, played table tennis and crossed the canyon. (2) Small technology products that turn waste into treasure. The teacher explained how to use the gears of old clocks and watches and waste toys to design and make new toys. Some students were inspired to complete their own innovative and high-quality mobile toys, such as manual electric roller coasters, electric bumper cars, robots, funny people dancing, owls and mice. (3) Theme Technology Production Competition. According to different grade requirements, students in each class design and produce, and teams are selected in the class, and then grade competitions are held. For example, the fourth, fifth and sixth grades hold windmill races. We stipulate that the wheels of racing cars must be made of thick paper, and ready-made wheels or other substitutes cannot be used. Other sizes, weights and styles are not limited. Again, the rubber band power car competition is limited to rubber bands with uniform specifications and lengths, and nothing else is limited. In this way, the students' enthusiasm is very high, and the racing cars designed and produced are also varied, giving full play to their intelligence and cultivating their creativity. 4. Precautions (1) should be graded according to age, knowledge level, practical ability and hobbies, and different production contents should be selected. The lower grades should choose content that is easy to make successfully, such as small parachutes; It is necessary to raise the difficulty at the intermediate and advanced levels. (2) Promote innovation. (3) no arrangement. (4) Emphasize safety in production.