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Capacity & Volume

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Stategies to use when teaching capacity and volume.
Capacity Man
Posted by:StephR #70734

We made this in my class.
Gallon = 8 x 11 paper = body
Quarts = 8 x 11 paper cut into 4 = legs and arms
Pints = 8 x 11 paper cut into 8 = calfs and forearms
cups = 8 x 11 paper cut into 16 = ends of arms and legs.

Then we added a head, hands and feet. By starting off with such large pieces of paper, the man becomes really big. However, if you start a gallon with a much smaller piece, then make your smaller capacity measurements off of that, it will make a much smaller man.

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Posted by:Suzann #73343

I am currently teaching capacity and volume to my 2nd graders and we are using rice to measure with instead of water. It can still get a little messy, but not as bad as water. The students are able to use it in the math center as well. I bought 10lbs of rice, but you may need more.

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Posted by:kat #37677

I just did liquid capacity with my class. I used actual containers and had the students pour from one to the other to see it really was true that there are 2c in a pint, etc. I gave a quiz on Fri. and although I haven't graded it I'm not real confident it went well. I think they can do it hands on, but they just don't get that some things need to be memorized. Hope it goes better for you! I'm moving on to weight on Monday--oz, pound, etc. Currently trying to avoid pitfalls for this lesson!

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Captain Capacity
Posted by:Lauren #69992

The head is the gallon. The eyes and nose are small t's (teaspoons) and the mouth is one long capital T..(tablespoon) Hence, 3 teaspoons in a tablespoon. The arms and legs are the quarts (4 in a gallon) and the hands and feet are the pints ( 2 in each quart and 8 in a gallon.) The fingers and toes are the cups...2 on each pint...which makes it 4 in each quart and 16 in a gallon. I have each child make an individual one with each body part being a different color. This helps them to identify the parts quickly and remember them easily. You will be surprised how much this helps!

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Posted by:mamie #40530

I tired various things but the children could not remember them. I got this from another teacher. Draw a giant "G" on the board. Then inside the giant "G" put 4 "Q's". Then inside each "Q" put 2 "P's", then inside each "P" put 2 "C's", and then inside the "C's" put the number "8". The children really can remember this. Explain that 4 quarts = 1 gallon, 2 pints= 1 quart, 2 cups = 1 pint and 8 fluid oz= 1 cup. If the children can see it they can work it. After practice in the classroom, they begin to calculate in their heads.

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math lesson
Posted by:Emily #91447

I have to say that the best way to teach capacity to 2nd graders is to actually let them experiment measuring and pouring. I've used water, which is VERY messy, but the kids love it. I've also used rice. You have to buy quite a bit of rice, but it's easier to clean up at the end.
I just finished a great unit on capacity from a book called Math Excursions - it's a project based math guide. The lessons are too long probably for your 30 minute lesson, but if you can get your hands on one, the project is very appropriate for 2nd graders and how they should learn math - it might at least give you some ideas for a thirty minute lesson.

One of the things I did was to bring in different size quart containers from around my house (bbq sauce, Tilex, car oil, lotion, water bottles,...

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Make a visual
Posted by:Jaime #91448

I make a great visual for teaching equiv measures of capacity. It is hard to describe my visual but I will give it a try..I call her Cassidy Capacity. I take a red peice of tag baord to be the body and write one gallon on it. I then take a peice of blue tag board and cut it the long way into fourths. These then become the legs and arms (write 1 quart on each) and attach with the little brass "thingies". I then take a peice of green tag board and cut into eights and these become hands and feet (write pint on each). Yes cassidy is a little strange and has two hands and feet on each arm and leg. I then use an orange peice of tag board and make 16ths (cups). Two of these get attached to each hand/foot to be fingers and toes. I...

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Did you know .. . .
Posted by:chris #74168

Relate base ten blocks to metric capacity and weight!!!

Did you know that a thousands cube represents a liter capacity?
A tiny unit cube = 1 milliliter.

Show your students how you can pour a liter bottle of water into a liter cube.

If you weigh the liter of water it = 1 kilogram and and a tiny unit cube filled with water weighs one gram!

I made a liter cube out of laminated centimeter paper, taped all side and filled it with water but it doesn't last. You can buy liter cubes through most math/science catalogs.

Ask how many ml of a liquid would fill a tiny unit cube, a tens rod, a hundreds flat, a thousands cube?
How much would each of them weigh in g/kg?

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Posted by:Aly #134923

Last year, I had 2 centers that the kids liked (both are described in Van de Walle's Elementary & Middle School Mathematics).

1)Capacity Sort:
You have a target container, such as a hot cocoa tin, and students are to sort other containers based on whether they hold more than the target, less, or about the same. First, they predict for each container whether it will hold more, less or the same. Then they determine which will actually hold more/less/the same by using a filler like beans or rice and a scoop. I used an answer sheet with a picture of each container being judged, with the words underneath that said "holds more," "holds less" and "holds about the same" with the instructions to circle one. I used the same answer sheet for the round of predictins and the round of testing; they...

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Another name
Posted by:teachr2nd #130593

We call this the "Land of Gallon." It is the same idea but we tell a story. The Land of Gallon has two Queens (qts.), each Queen has a prince and a princess (pts.) and each prince and princess have two children (cups). The kids seems to remember how to draw the diagram by retelling the story.

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3-D Measurement Man
Posted by:trexteach #119068

When I taught 2nd grade, I went to a nearby, (Well, actually about an hour away!) dairy factory where they generously supplied me with new, empty pint and quart containers. I collected some used half-pint cartons from the cafeteria, cleaned them out, and taped them shut. I also cleaned out one of my empty gallon jugs. I attached them all together with yarn so that they looked like the "Gallon Guy" the others have attached to their posts. I added a face and we called him the Measurement Man. I hung him up as a display that we could continue to refer to when we discussed liquid measure. I also sent home a Measurement Man page so the students and their parents could see the relationships. I actually had some parents thank me for this because they said it even made seeing the relationships easier for them to remember!
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Math games
Posted by:Angie #20483

I made a measurement equivalency game by cutting a large gallon out of construction paper (make it even measurements) and then I cut quarts (1/4 of the gallon) out in a different color, pints (1/8 of the gallon) in another color, and cups (1/16) in another color. I ask questions like "How many quarts in a gallon?" or "show me 1 1/2 gallons" and the groups must make it with the materials.
I have a proabbility game called Rollar Derby that calls for gameboards and tokens. That could be made homemade. I could tell you more in an email. I have made "Wallets" to teach about counting money and making change and adding/subtracting decimals. You take a square of tagboard (not the whole sheet) and fold it in half. Then you fold it in half the other way to create a paper wallet. I use contact paper...

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