Standard 4.MD.3 – Area and Perimeter

4.MD.3

Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.

Explanation: Students have already learned how to find area and perimeter in third grade, so this will be no trouble at all for them. They will read real-world problems like “How many square feet of grass is in the dog’s play area?” or “How much fence will we need around the dog’s play area?” and need to know the formulas to solve them. the formulas are A=LxW (area equals length times width) and P=L+W x 2 (perimeter equals length plus width times 2).

Sometimes students get stumped on P=L+W x 2. Remind them that it means the same as P=S+S+S+S (perimeter equals side plus side plus side plus side). This explained in detail in the video below.

Quiz Lesson Video:



Helpful YouTube Videos:

















7 Responses to Standard 4.MD.3 – Area and Perimeter

  1. I really like how you taught me how to do length and primiter .

  2. Leiona says:

    I watched

  3. kairi says:

    The videos are supper helpful, THANKS MRS. ANSON!! ^-^
    😀

  4. noah says:

    thanks mrs anson they helped

  5. Leiona says:

    These help a lot thanks you are the best!!

  6. aubree says:

    I know its april 11, 2019 but I’m still having problems with area and perimeter. I watch the videos but I’m still confused. Can you teach me more about area and perimeter?

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