Unit 4: Multiplication & Area
In this unit students explore area as an attribute of two-dimensional figures and relate it to their prior understandings of multiplication.
Essential Questions:
- How do I decide which measure to use to find area?
- How do I choose the appropriate strategy to find area or perimeter of a shape?
Essential Understandings:
- Students will understand people use measurement systems to estimate and show the perimeter and area of an object.
- Students will recognize area as an attribute of plane figures and understand concepts of area measurement.
- Students will understand that they can measure area by counting unit squares.
- Students will relate area to multiplication and addition.
Skills the students will learn:
- Finding the side lengths of a rectangle in units and multiply the lengths to determine the area.
- Using the technique of decomposing rectilinear figures to find the area of each rectangle in order to determine the area of the entire rectilinear figure.
- Finding the perimeter when given the length of sides.
- Finding the perimeter when there is an unknown side length.
- Designing, Creating, Drawing, Modeling, etc. rectangles with the same perimeter and different areas and/or rectangles with the same area and different perimeters.
- Describing, analyze, and compare properties of two dimensional shapes.
Vocabulary:
- Area (the amount of two-dimensional space in a bounded region)
- Area Model (a model for multiplication that relates rectangular arrays to area)
- Square Unit (a unit of area - specifically square centimeters, inches, feet, and meters)
- Tile (to cover a region without gaps or overlaps)
- Unit Square (e.g., given a length unit, it is a 1 unit by 1 unit square)
- Whole Number
Websites:
- Relationships Between Area and Perimeter
- Area with Unit Squares
- Area with Unit Squares 2
- Area of Rectangles
- Area of Squares and Rectangles
- Area of Complex Figures
- IXL: Find Area of Complex Figures
- Find the Perimeter
- Compare Area and Perimeter of Two Figures
- Relationship Between Area and Perimeter
Parent Helpers:
eureka_math_grade_3_module_4_parent_tip_sheet.pdf
Homework_Helpers_Eureka_Module_4.pdf