I would not recommend it with Cuisenaire rods. Modeling area when fractions are involved is much harder. (Instead of adding over and over, would there be an easier way to figure out the answer?) Write an expression adding up all the lengths.Ask them count how many lengths are used.Have them figure out what the length is.Have the children fill in their rectangle with Cuisenaire rods.When it comes time to solve for the area, you can increase their understanding of area using whole numbers by a simple extension. While it is imperative that our children know that, it is also important for them to explore the concept and see why they should multiply. We could simply say, “To find the area you need to multiply the length times the height.” When we pull out manipulatives, we give our children the chance to understand the in and outs of a problem. The majority of the time I didn’t have a clue as to why I was doing what I was doing. My math education consisted of the teacher telling me how to solve a problem and then performing that operation over and over. Our upper elementary kiddos will follow the same steps as our younger children, but instead of doing basic operations with whole numbers, they will be forced to add and multiply mixed numbers. You will notice that the value for those rods is never mentioned, adding another level of difficulty to this problem.īut just so you know, the light green equals 1/2 and the red equals 1/3 of the dark green rod!! Just as in the first problem, the students are required to use a green rod, a red rod, and a light green rod too. When you make it one whole, everything else becomes a fraction. The second level is to assign the green rod a different value. Decide which one would make the best rink and explain why.Īrea and Perimeter Word Problems for 3rd, 4th, 5th Grade.Figure out the area and perimeter of each rink.Design three rinks using at least one of each rod.Get out green rods, red rods, and light green rods.The first level allows children to figure out the area and perimeter using whole numbers. They are then asked to give the area and perimeter of each shape. The children are asked to design three rinks with Cuisenaire rods. Let’s Build a Rink mainly addresses area and perimeter using a model. Now that we all agree on that, why not use this crazy (but so much fun) time of the year to try out some real-life problems and get your children thinking. If you are in a classroom you know that Common Core is all about solving real word problems, and even if you are homeschooling I’m sure you can agree that math is understood better when applied to our daily lives. With that thought in mind, I decided it would be a great time to try out some word problems that can’t be solved in just a few minutes, or maybe even in one class setting. *This post contains affiliated links Area and Perimeter Real World Problems We all need a change of pace as we look forward to celebrating Christmas and spending time with our families. Oh, and did I mention they are tired from the extra fun we have been having? All of that makes for some interesting school days, and with that said, I know we need a change of pace.
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