• Unit 3 - Area 
     
     
    Objective:
    3.MD.5 Recognize area as an attribute of plane figures and understand concepts of area measurement.
    1. A square with side length 1 unit, called a “unit square” is said have “one square unit” of area, and can be used to measure area.

    2. A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.  

     
    3.MD.6 Measure areas by counting unit squares (square cm, square m, square ft, and improvised units)
     
    3.MD.7 Relate area to the operation of multiplication and addition.
    1. Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.

    2. Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world mathematical problems and represent whole number products as rectangular areas in mathematical reasoning.

    3. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a x b and a x c. Use area models to represent the distributive property in mathematical reasoning.

    4. Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of non-overlapping parts, applying the technique to solve real-world problems.

     
    3.MD.8 Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding the unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

     

     

     
    Vocabulary Words:

    area - the number of square units needed to cover the inside of a region or plane figure. 

     
    multiple - a multiple of a number is the product of that number and any whole number.
     
    tiling - covering a surface with tiles
     
     
    Websites:
    I have listed several websites below that will be helpful to you during this unit. Some of the websites have online games, others have worksheets that may help you practice with these skills. Feel free to use as much or as little as you'd like.