3rd Grade - Math - 3.MD - Measurement and Data
Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects
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3.MD.A.1
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Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.
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Web Games
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3.MD.A.2
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Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l).
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3.MD.A.2a
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Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units, e.g., by using drawings (such as a beaker with a measurement scale) to represent the problem.
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Notebook Files:
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Represent and interpret data
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3.MD.B.3
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Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step “how many more” and “how many less” problems using information presented in scaled bar graphs. For example, draw a bar graph in which each square in the bar graph might represent 5 pets.
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3.MD.B.4
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Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units, whole numbers, halves, or quarters.
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Notebook Files:
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Geometric measurement: understand concepts of area and relate area to multiplication and to addition
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3.MD.C.5
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Recognize area as an attribute of plane figures and understand concepts of area measurement.
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3.MD.C.5a
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A square with side length 1unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.
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Web Games
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Notebook Files:
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3.MD.C.5b
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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.
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Web Games
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3.MD.C.6
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Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).
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Web Games
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3.MD.C.7
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Relate area to the operations of multiplication and addition.
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3.MD.C.7a
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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.
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Web Games
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3.MD.C.7c
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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.
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Notebook Files:
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3.MD.C.7d
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Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.
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Web Games
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Notebook Files:
Finding the Area |
Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures
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3.MD.D.8
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Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.
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Web Games
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