This lesson plan introduces students to quadrilaterals and their properties. It aims to have students learn the terminology used with quadrilaterals and practice creating different quadrilaterals based on their characteristics. The lesson will introduce parallelograms, rectangles, rhombuses, squares, and trapezoids. It provides formulas for calculating the areas of each shape and example application problems using real world contexts. The 90 minute lesson will use slides, paper, and drawing tools for students to practice identifying and constructing the different quadrilaterals.

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LESSON PLAN
Lesson objectives
Upon completion of this lesson, students will:
• have been introduced to quadrilaterals and their properties.
• have learned the terminology used with quadrilaterals.
• have practiced creating particular quadrilaterals based on specific
characteristics of the quadrilaterals.
Procedure
Standards -Geometry
 Analyze characteristics and properties of two- and three-dimensional geometric shapes
and develop mathematical arguments about geometric relationships
 Describe, classify, and understand relationships among types of two- and three-
dimensional objects using their defining properties
 Understand relationships among the angles, side lengths, perimeters, areas, and
volumes of similar objects
 Create and critique inductive and deductive arguments concerning geometric ideas and
relationships, such as congruence, similarity, and the Pythagorean relationship
 Use visualization, spatial reasoning, and geometric modelling to solve problems
Lesson plan no Country Romania
Course / subject “How to set up a school garden?” -
Topic Maths in practice, measuring, calculating
Lesson title Quadrilaterals Areas
Level /Age Level 2 (A2 and
above)
Lesson duration 90 minutes

2.  draw geometric objects with specified properties, such as side lengths or angle measures
AREA OF THE PARALLELOGRAM
The area of a parallelogram is equal to the product of the length of a side b and its
corresponding height h. A = b∙h
Application:
Determine the yard area of a householder which has the shape of a parallelogram
with a side length of 40 m and 22 m corresponding to her.
AREA OF THE RECTANGLE
Area of a rectangle is equal to the product of length L and width, l. A = L∙l
Application:
On land parallelogram shaped our householder who builds a house footprint is a
rectangle with a length of 12 m and width of 9.5 m. The land area will occupy the
house.

3. RHOMBOID AREA
The area of a rhombus is equal to half the product of its diagonal lengths d1 and d2.
Application:
Our man in front of the house arranged a flower bed as a rhombus with diagonals of 4
m and 2 m. What is its area?
SQUARE AREA
The area of a square is the square of the length of its side , l. A = l2
Application:
The householder organizes a backyard vegetable garden side with a square of 10 m
where planting tomatoes. If each plant needs about 25 square dm and is harvested

4. every 5 kg of tomatoes, which is the total harvest obtained?
TRAPEZIUM AREA
The area of a trapezoid is equal to half the product of the combined length of its bases
B, b and height h length of the trapezium.
Application:
Near the house is holding a green space shaped like a trapezoid base exceeding 15 m,
based than 7 m and h=22 m. How many kilos of grass are needed to sow this area if
100 g seed sufficient for one square meter soil? How many boxes will buy 2 kg
householder will pay and how the seeds if 1 kg costs 5 euro?
Materials
 Slide-show
 Paper
 Pencils, rulers
 Laptop, projector
Reference
https://www.education.com/lesson-plans/
https://www.teacher.org/lesson-plans/
Maths Teacher – Virginia Arghiropol
Class 7 A