Complex Machines (2nd grade)
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Let's continue on page 102. We will continue learning about a new type of machine called
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complex machines. Let's begin by reading the box above. Simple machines can work together
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to make more complex machines. Complex machines have more than two parts, so it has three, four,
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five, a hundred, just more than two parts. They are combinations of simple machines.
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Complex machines make difficult or dangerous tasks easier, so they make life easier and more safe
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for humans. They do things that people can't. A computer, a car, and a washing machine are
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complex machines. So these machines have very specific and special functions and abilities
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that help humans live life easy, clean, move, pick up, and do things every day with a little bit
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more ease. Number one. In exercise one, I will describe each of these machines and you will
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listen and then match. You probably recognize most of these complex machines from your home,
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so as I say you can look at the pictures and match to the correct word. Computer.
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I browse the internet on the computer. Car. I drive to school in the car. Radio.
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I listen to news on the radio.
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Television.
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I watch my favorite movie on the television.
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Camera.
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I take a picture of my family with the camera.
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Washing machine.
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I wash my dirty clothes in the washing machine.
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So please match, for example, computer, and do the same with all of the rest of these complex machines.
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Alright, and when you are finished with exercise one, let's move forward to exercise two.
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Alright, let's continue now with exercise two.
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We will color the simple machines red and the complex machines blue.
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Please grab a red and blue pencil or marker and let's begin.
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Remember that simple machines are levers, wedge, pulley, inclined plane, wheel and axle.
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Simple machines only have one or two parts.
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Complex machines are machines such as electronics or other more complex
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machines that can do more. You will see, for example, I have colored the wedge red
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because a wedge is a simple machine. Now please go through to the other machines.
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we have a calculator, a microwave, a screw, a mobile phone, a shovel, a axe, and a
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clock. And please color as you think red for simple machine or blue for complex
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machine. Let's move forward with exercise three. Match, then read the sentences. So
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you will match the beginning of each sentence on this side to the correct end
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of the sentence. Each of these sentences will describe what we use a certain
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machine for. So what we use a car for, what we use a telephone for, and what we
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use a washing machine for. Please match the beginning to the end of each
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sentence correctly. Now listen and I will go over and tell you the correct
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matching. We use a car to go from one place to another. We use a telephone to
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communicate with people. And we use a washing machine to wash clothes. Okay,
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good work. Let's continue on to page 103.
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- Autor/es:
- Beatriz
- Subido por:
- Beatriz C.
- Licencia:
- Reconocimiento - No comercial
- Visualizaciones:
- 76
- Fecha:
- 29 de abril de 2020 - 11:17
- Visibilidad:
- Clave
- Centro:
- CP INF-PRI SAN PABLO
- Duración:
- 05′ 22″
- Relación de aspecto:
- 16:9 Es el estándar usado por la televisión de alta definición y en varias pantallas, es ancho y normalmente se le suele llamar panorámico o widescreen, aunque todas las relaciones (a excepción de la 1:1) son widescreen. El ángulo de la diagonal es de 29,36°.
- Resolución:
- 848x480 píxeles
- Tamaño:
- 50.53 MBytes
