Simple machines part II (2nd grade)
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All right class, let's move forward on page 99 and let's begin with activity four.
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You will listen as I describe each of these simple machines and number.
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Let's begin with number one.
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one you screw on the cap of a water bottle so here is the cap and here is the water bottle
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and we screw this on to close the water bottle
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number two you turn the axle around the wheel so find the picture of the wheel and axle and
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please number it two once again two wheel and axle number three push down the lever to lift
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up the box. Which picture shows the lever? Please number lever with number three.
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All right, let's continue on to exercise five. Complete the sentences with names
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of simple machines. So I will speak the full sentence and you will write out
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out the missing word in each one, the missing machine, with its correct purpose and description.
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Let's begin. We use a pulley to lift objects. We use a wedge to cut objects. We use a lever
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to push objects up or down.
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So please write in the correct simple machine
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with its purpose and function as a machine.
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Okay, great work.
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And now let's continue forward with these fun pictures
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where we will get to draw in which simple machine is needed
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for the person to move, or to cut, or to lift.
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So first, we have a picture of a woman in a car.
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Which tool or machine do we need at the bottom of the car to move the car forward and backward?
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Tell me which machine is needed.
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Yes, excellent.
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We need a wheel and axle to roll and move the car forward.
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So you can draw in the circular wheels.
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Okay.
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And write the tool, the machine, wheel and axle.
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Next, here is a man who needs to cut a sandwich for lunch.
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What tool does he need to cut the sandwich? Does he need a knife or a spoon? Yes, excellent.
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The man uses a knife to cut the sandwich. So here I have my knife. He will use to cut the sandwich.
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and tell me what kind of machine is a knife. If we use that machine to cut, excellent. It is a wedge.
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So please write wedge. Finally, we have a man who needs to load and put the boxes into
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the moving van or the truck. So please draw in which simple machine he needs to help him
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use a ramp to move the heavy boxes forward and up into the truck. Yes, excellent. We will draw
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an inclined plane so that the man can push the boxes up into the truck. One
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more time, we will write wheel and axle, wedge, and inclined plane below each of
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our drawings that we have done. Finally, let's read this box together. Some simple
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machines are called tools. Tools and machines help people every day at home,
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work, and school. So an example of a tool would be our knife which is a wedge. Okay
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thank you for learning with me and completing your work.
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- Autor/es:
- Beatriz
- Subido por:
- Beatriz C.
- Licencia:
- Reconocimiento - No comercial
- Visualizaciones:
- 84
- Fecha:
- 28 de abril de 2020 - 11:12
- Visibilidad:
- Clave
- Centro:
- CP INF-PRI SAN PABLO
- Duración:
- 06′ 05″
- 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:
- 56.79 MBytes
