Chapter 15

Customary Length, Weight & Capacity

3rd Grade: Chapter 15 Outline

Week 32 - Week 33

Essential Questions:

  • How can I decide what unit to use when measuring an object?
  • How can I accurately conclude the length, mass and capacity of a given object?

Content:

Students will know and understand:

    • Quarter inch, half inch, three quarter inch and inch.
    • Yard, foot and mile.
    • Customary.
    • Capacity.
    • Ounce, pound and ton.
    • Cup, pint, quart and gallon.
    • What unit to use when measuring various objects.

Skills:

Students Will:

    • Accurately measure and estimate length weight and capacity using customary units.

Upon completion of Unit 15:

  • 3.MD.B.4. 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.
  • 3.MD.C.7a. 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.
  • 3.MD.C.7b. Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world and mathematical problems, and represent whole-number products as rectangular areas in mathematical reasoning.
  • 3.MD.C.7c. 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 × b and a × c. Use area models to represent the distributive property in mathematical reasoning.
  • MP.1. Make sense of problems and persevere in solving them.
  • MP.2. Reason abstractly and quantitatively.
  • MP.4. Model with mathematics.
  • MP.5. Use appropriate tools strategically.
  • MP.6. Attend to precision.