4th Grade Ms. Fritzie
Fourth Grade students are to make sense out of their world, to see the mathematics all around them, and to be able to begin to talk about the math in formal mathematical terms. It is the teacher’s job to see that there are many experiences for students to grow in these critical areas.
4th Grade Sample Question
Students should work in partners to create their posters. Once the posters are completed, partners present their strategies and conclusions to the class.
Materials:
- Newsprint or other large paper, pencil, and crayons
- Optional materials – cm grid paper, rulers, etc. which will help them find the number of units around the cabin.
The Problem:
Abraham Lincoln’s cabin was 20 feet long, 10 feet wide and 8 feet high. Ms. Fritzie’s lake cabin is 40 feet long, 20 feet wide and 9 feet high. “Why, the perimeter of my cabin is twice the perimeter of Abraham Lincoln’s cabin!” she exclaimed.
Help students with any vocabulary that is new to them. One of the benefits of using Ms Fritzie is that you do have a great deal of vocabulary that can be introduced as needed to solve the problem. Student partners must then decide whether Ms. Fritzie’s answer is reasonable or unreasonable. They should draw Ms. Fritzie’s face and put a thought bubble that describes what Ms. Fritzie is thinking.
They
should then create a poster using pictures, numbers and words which
will prove whether Ms. Fritzie is reasonable or unreasonable.
Once posters
are complete,
student pairs should tell how they solved the problems. The class
should listen to each presentation. Ultimately you want the class to be able
to compare the
presenting solution strategy to their own strategies.
4th Grade Sample Poster
These students knew immediately not to use the height of the cabin. They were able to explain each step of the process and even noted that the dimensions for Ms. Fritzie's hut were exactly twice those of Lincoln's cabin.
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