Lesson Title
Two-Dimensional Shapes: Area and Perimeter
Unit Title
All About Shapes
NRS Level
Level 2; Level 3;
Length of Lesson
90 minutes
Lesson Purpose The purpose of the lesson is to teach students the concept of perimeter and area regarding two-dimensional figures, how they can be kinesthetically calculated, and what they are used for in real life.
Related Documents math_formula_sheet-2.pdf
Lesson Objectives At the end of this lesson, students will be able to
explain the difference between area and perimeter.
calculate perimeter of a rectangle, square, and triangle using graph paper.
calculate area of a rectangle, square, and triangle using graph paper.
calculate the perimeter of a rectangle, square, and triangle using the perimter formulas.
calculate the perimeter of a rectanlge, square, and triangle using the area formulas.
Student Target “I can...
calculate perimeter and area of rectangles, squares, and triangles using graph paper."
calculate perimeter and area of rectanlges, squares, and triangles using the proper formulas."
CCR Focus Standards Geometry - Level B
3.MD.5
Recognize area as an attribute of plane figures and understand concepts of area measurement.
a. A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.
b. 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.
Supporting Standards
3.MD.6
Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).
Standards for Mathematical Practice
MP.3
Construct viable arguments and critique the reasoning of others. (MP.3)
MP.5
Use appropriate tools strategically. (MP.5)
KYAE Employability Standards
E.7
E.7 Accurately analyze information and respond appropriately.
E.8
E.8 Interact with others in a professional manner.
