2.Maths in practice L2

1. ‘STAY 3E –Stay Eco-friendly, Entrepreneurial, European.
Providing practical solutions for effective teaching and enjoyable learning
at primary level´
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