WEEKLY REFLECTION 4/12/17 - 8/12/17

WEEKLY REFLECTION 

4/12/17 - 8/12/17 

                                                     I completed the fourth week of our teaching practice and this week I was able to complete 5 lesson plans. I was able to teach the topics rectangle, parallelograms, rhombus, trapezium and their construction. The students were very much interested in the class as they all love to do constructions. I used constructivist model to teach trapeziums and used ICT to conclude the unit.

                               This week we had trainees from Kottiyam,TTC for class observation and we had a really good time. On tuesday, we also had an asianet talent test for students from V to X and we assigned duties to conduct the test.

Innovative work report

INNOVATIVE WORK REPORT

INTRODUCTION
           
                              As a part of our B. Ed curriculum we had to submit an innovative work based on our ideas and creativity. I planned to bring out something that would be really beneficial to the students I teach and so I chose to make the following model:

                          My innovative model was made of wood and 37 nails were also used as a support so that many figures can be demonstrated using a rubber band or a string. This model was very helpful to me while teaching equal triangles, polygons and construction of quadrilaterals as many abstract ideas could be concretized easily. I also prepared a small booklet with 12 pages that included interesting questions and the answers to those questions could be easily found out using the model. The students were very interested while I made them do those activities and some of them even made the model and showed me.  

OBJECTIVES

• To concretize many abstract ideas and to make concepts more clear and simple.
• To apply knowledge in a new or unfamiliar situation.
• To develop a positive attitude towards Mathematics.
• To accept the beauty of mathematical concepts. 

WEEKLY REFLECTION 27/11/17 - 30/11/17

WEEKLY REFLECTION

 27/11/17 - 30/11/17

                                          I completed the third week of our teaching practice and I completed four lesson plans. I was able to complete the unit 'ratio' and I started the unit 'construction of quadrilaterals'. I used concept attainment model to start the unit of construction of quadrilaterals and the students were very clear about the topic. I also conducted a diagnostic test for them on the unit 'ratio'.

                                         This week my friends came to observe my class and they suggested many valuable points so that I can improve my teaching skills. It was a half day on Thurday and a holiday on Friday due to cyclone Ockhi.

WEEKLY REFLECTION 20/11/17 - 24/11/17

WEEKLY REFLECTION

 20/11/17 - 24/11/17

                               It was the second week of our teaching practice and this week also I was able to complete 5 lesson plans. I continued with my portion 'unit' and completed till 'three quantities of ratio'. I used inquiry training model to teach changing relations and the students were very co- operative and responded well. 

                                 In this week I was able to make a good rapport with other students of the school as we were assigned duties this week. I went to IX and X for substitutions and it was a very good experience.

                                      

On June 21st we celebrated 'Yoga Day' under the guidance of Francis sir who is in charge of the Physical Education Department. The students were made to perform some of the asanas and they did pretty well.... 

WEEKLY REFLECTION 13/11/17 - 17/11/17

WEEKLY REFLECTION

13/11/17 - 17/11/17

                                      

            ''Education is the not the learning of facts, but the training of the mind to think"

- Albert Einstein.

                        
                                      Our first day of teaching practice started on 13th of November at St. John's High School, Eravipuram. I was assigned to teach the students of standard VIII C and they were very co-operative. I completed five lesson plans with the first class as ICT giving them a better understanding of the concept of the topic . I started the unit 'ratio' and was able to complete till 'changing relations'. 
                         
                                      We also celebrated Children's Day on 14th of November and there was distribution of cakes and sweets to the students. Our chief guest was Mother General Rexia Mary and she delivered a wonderful speech on the importance of the day. On Wednesday our school conducted a book exhibition in association with the Nanma club for three days. It was an enriching experience for the students as well as for us.

Digital textbook - Polygons

digital  textbook

Submitted by,

Sandra Faria,

B.Ed Mathematics.

POLYGONS

Contents

TOPICS	PAGE
Polygons	4
Types of Polygons	7
Naming polygons	9
Sum of angles of a Polygon	10

Polygons

A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. The word ‘polygon’ is derived from the greek words ‘poly’ which means ‘many’ and ‘gon’ means ‘angles’.

The name tells you how many sides the shape has. For example, a triangle has three sides, and a quadrilateral has four sides. So any shape that can be drawn by connecting three straight lines is called a triangle, and any shape that can be drawn by connecting four straight lines is called a quadrilateral.

 There are some that wish to name every possible polygon, but there seems a little point in doing so. For example, a 42-sided polygon is called a ‘tetracontakaidigon’.

Beyond about 10 sides, most people call them an ‘n-gon’. For example, a 15-gon has 15 sides. This seems easier to remember and understand.

All of the shapes below are polygons. Notice how all the shapes are drawn with only straight lines? This is what makes a polygon.

If the shape had curves or didn’t fully connect, then it can’t be called a polygon. The orange shape is still a polygon even if it looks like it has an arrow. All the sides are straight, and they are all connected. The orange shape has 11 sides.

Thus, polygons are two dimensional closed shapes and they are made of straight lines.

Now can you answer the following table keeping in mind the properties of a polygon???

Types of Polygons

Now let’s go through some of the common types of polygons. Are you ready for it???

1) Regular or Irregular Polygons

A regular polygon has all angles equal and all sides equal, otherwise it is irregular.

     

2) Concave or Convex Polygons

A convex polygon has no angles pointing inwards. More precisely, no internal angle can be more than 180°.
If any internal angle is greater than 180° then the polygon is concave. (Think: concave has a "cave" in it)

3) Simple or Complex Polygons

A simple polygon has only one boundary, and it doesn't cross over itself. A complex polygon intersects itself. Many rules about polygons don't work when it is complex.

Naming of Polygons

Sum of angles of a polygon

We know that the sum of angles of a triangle is ________ .

Do we get the same sum for the angles of a quadrilateral?

How about a pentagon?

Thus, the formula for calculating the sum of the interior angles of a regular polygon is (n - 2) × 180° where n is the number of sides of the polygon.

This formula comes from dividing the polygon up into triangles using full diagonals.

Now can you complete the following table…???

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