English popular science articles 1
Listen to some small music and relax your grades.
Trapped in a tough math problem? Start clapping. Pupils who learn grades through rhythm and music-based courses perform better than their peers in traditional math classes. This work is a research on mathematics education.
Stunned by a math problem? Give it a try. The research shows that the effect of primary school students' learning music score knowledge under the background of rhythmic music is better than that of traditional classroom (the specific research is published in Susan's article "Academic Music: How to use music to assist third-grade primary school students to learn basic music score"? Corey, etc. ).
Fractions allow you to divide bars of music into notes of different lengths. For example, a four-beat bar can contain a single whole note of all four beats, two and a half notes of each beat, four quarter notes of each beat, and so on. In the college music program, based on Kodaly's music education method, students memorize the length of notes by clapping, drumming and singing? Then solve the problem that fractional notes must add up to form a complete musical measure.
According to the concept of music score, a piece of music can be divided into several strings of notes of different lengths. For example, a four-beat tune may contain a whole note representing four beats, two and a half notes each representing two beats, four quarter notes each representing one beat, and so on. Are you online? Academic music? In this project, based on Kodaly's music education method, the researchers asked students to remember the length of each note by beating time, drumming and chorus. Students must add up these pieces to get a complete piece of music. This practice can solve students' doubts about scores.
67 students participated in the study. Half of the people use the academic music system to do math problems. After six weeks, the students in the music class were 50% higher than those in the ordinary math class on average. Grades lay a solid foundation for further mathematics education? So mastering them is the sound of nature for educators.
67 students participated in the study as subjects, half of whom were in? Academic music? Solve mathematical problems under the system. After six weeks, their test scores were on average 50% higher than those in the ordinary class. Fraction is the basis of further mathematics knowledge teaching. In this case, it is thanks to the ears of educators.
English popular science articles 3
/kloc-pigment studio 0/0 million years ago
Archaeologists found a painting studio in an ancient cave in South Africa. A new archaeological discovery may mean a great leap in the history of human culture and cognition. Because the researchers found an art studio that was 10 million years old. As everyone knows, ochre? Rocks with red or yellow pigments? It was used in painting a long time ago. But there is little evidence to show how it was prepared and handled. Then, in 2008, researchers found a set of ochre mixing tools in a cave in South Africa. They found two abalone shells, which were probably used to mix and store pigments. They also found ochre, bones, charcoal, millstones and hammer stones. The researchers say that ochre may be a fine powder produced by friction on quartzite plates. Then mix it with other crushed substances and heat it, including other stones or mammalian bones. The microscopic stripes on the inner surface of abalone are probably scratches left by paint mixing. The study was published in the journal Science. This pigment may be used for human body decoration or works of art long ago. The existence of this nano-manufacturing laboratory shows that early humans understood basic chemistry and could make plans for the future.
Archaeologists discovered a painting studio in an ancient cave in South Africa. This new archaeological discovery may be one of the greatest leaps in the history of human culture and cognition. Because the studio discovered by researchers was born 10 million years ago. As we all know, ochre with red or yellow pigment has been widely used in painting, but there is little evidence to show how it is made and used. In 2008, researchers found an ochre mixing tool in a cave in South Africa, two abalone shells that might be used for mixing and storing pigments, and they also found ochre, bones, charcoal pens and stone hammers. The researchers said that these ochres were probably carefully ground into fine powder on a quartzite board, and then mixed with other stones or mammalian powder and heated. Observing the inner surface of abalone shell with microscope, we can find some scratches, which may be left in the process of pigment mixing. This discovery has been published in scientific journals. These pigments may have been used in body painting and long-lost works of art, and the existence of these pigment production studios shows that early humans had a basic understanding of chemistry and the ability to plan the future. A small step for pigment tools and a big step for human history.
English popular science articles 3
Do you know the benefits of having a fever?
Fever can play a variety of roles, such as inhibiting pathogen replication. It also significantly increased the number of killer T cells in the immune system. Christopher Intagliata reports.
Fever has many different functions, such as inhibiting the replication of germs. It can also significantly increase the number of killer T cells in the immune system.
I always thought that when I had a fever, it was my body trying to make the invading pathogens feel uncomfortable. Is this often true? Higher temperatures will inhibit the replication ability of the bad guys. But my fever may actually be a combo. In addition to slowing down the invasion, the high temperature also helps the immune system recruit more troops to fight back. This discovery was published in the Journal of Leukocyte Biology.
I have known for a long time that when I have a fever, it is actually my body that resists invading pathogens. It is a fact that high temperature can inhibit the replication ability of bad bacteria. But fever is a comprehensive blow. In addition to slowing down the invasion of pathogens, high temperature can also help the immune system summon more troops to resist. The study was published in the Journal of Leukocyte Biology.
The researchers heated the body temperature of a group of mice to about 103 degrees Fahrenheit. They left the other group at normal core temperature? It's similar to ours. Then, they injected two groups of mice with an antigen, which attracted the attention of the immune system.
The researchers raised the body temperature of one group of mice to 103 degrees Fahrenheit, while the other group kept normal body temperature-about human body temperature. Then two groups of mice were injected with antigen, which is a substance that can cause immune system reaction.
Blood samples collected three days later show that the number of killer T cells in feverish mice is almost twice that of normal mice, and this immune cell can capture and kill infected cells or tumor cells.
Three days later, the blood samples of the two groups of mice showed that the killer T cells in the mice with higher body temperature were twice as high as those in the normal group. This immune cell can track infected cells or cancer cells and destroy them.
Therefore, when you are sick and feel cold, the author says, your body may try to tell you to jump under the blanket. Lie down, warm up, send a message. The heating is on.
Therefore, when you are sick or feel cold, it means that your body is just sending you a message-wrap the blanket. Lying in bed. When you get hot, your body will react. The heat is coming.