Classifying figures
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This document provides instructions for classifying different geometric shapes based on their attributes. It describes how to sort figures as regular or irregular based on equal sides and angles. It also explains how to categorize triangles based on the number of equal sides as equilateral, isosceles, or scalene and based on angle measures as acute, right, or obtuse. Additionally, it outlines how to sort shapes by the number of sides and provides examples of polygons from triangles to octagons. Lastly, it mentions sorting quadrilaterals and convex versus concave shapes.
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CONTENTS
DEFINITION CIRCLE TRIANGLE SQUARE RECTANGLE SECTOR
DEFINITION OF AREA
• The extent or measurement of a surface or piece • Its units are meter square(m^2) in SI(system international) Units, feet square(ft^2) in F.P.S(foot pound second) or British system and centimeter square(cm^2) in C.G.S(centimeter gram second) or French System. • Simplest formula to measure area is Area=Width*Length
CIRCLE
A ROUND PLANE FIGURE WHOSE BOUNDARY (THE CIRCUMFERENCE) CONSISTS OF POINTS EQUIDISTANT FROM A FIXED POINT (THE CENTRE).
MEASUREMENT OF THE AREA OF CIRCLE
RADIUS (R)
A straight line from the centre to the circumference of a circle or sphere. How to Measure Area Practically WE just simply need to find the radius by using scale and then use this formula
TRIANGLE
A PLANE FIGURE WITH THREE STRAIGHT SIDES AND THREE ANGLES.
MEASUREMENT OF THE AREA OF TRIANGLE
HOW TO FIND AREA OF TRIANGLE PRACTICALLY
• We just simply need to use scale and then measure the height and base of the triangle
SQUARE
A PLANE FIGURE WITH FOUR EQUAL STRAIGHT SIDES AND FOUR RIGHT ANGLES.
MEASUREMENT OF THE AREA OF SQUARE
HOW TO FIND AREA OF SQUARE PRACTICALLY
• We just simply need to use scale and measure the length of one of four sides
RECTANGLE
A PLANE FIGURE WITH FOUR STRAIGHT SIDES AND FOUR RIGHT ANGLES, ESPECIALLY ONE WITH UNEQUAL ADJACENT SIDES, IN CONTRAST TO A SQUARE.
MEASUREMENT OF THE AREA OF RECTANGLE
HOW TO FIND AREA OF RECTANGLE PRACTICALLY
• We just simply need to use scale and measure the length and width of the rectangle
SECTOR
THE PLANE FIGURE ENCLOSED BY TWO RADII OF A CIRCLE OR ELLIPSE AND THE ARC BETWEEN THEM.
MEASUREMENT OF THE AREA OF SECTOR
HOW TO FIND AREA OF SECTOR PRACTICALLY
• We just simply need to use scale and measure the length and width of the rectangle
GEOMETRY SCALES USED FOR THE ABOVE SHAPES
GEOMETRY SCALES USED FOR THE ABOVE SHAPES
SIGNIFICANCE OF MEASUREMENT OF AREA Everything which exists has a specific mass and area which we need to measure for various reasons, some of these are described here: • We use measurement of area in different aspects of life specially when are dealing with standards of different objects , area , is one the first things, which comes in our mind. i.e. standard for property is area(how large property is) and
SIGNIFICANCE OF MEASUREMENT OF AREA
similarly when we need to buy cloth we use area as an standard and pay price according to the area of that piece of cloth. • Engineering and its related fields are impossible to exist without the measurement of area. i.e. we need machines and reactors of different areas while working in a chemical plant for specific uses.
SIGNIFICANCE OF MEASUREMENT OF AREA
• Measurement of area plays an important role in architecture and designing. Whenever we need to build an object again area is
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This document provides instructions on measuring angles using a protractor. It defines what a protractor is, the parts of a protractor, and the steps to accurately measure an angle which include placing the protractor's center mark on the angle's vertex and rotating the protractor to align one ray with the zero-edge to read the measurement of the other ray. Common mistakes like using the wrong scale or not centering on the vertex are also outlined.
Unit 2 Addition, Subtraction, and Multiplication
This document provides an overview of math lessons on whole numbers, including addition, subtraction, multiplication, and division. It includes examples of adding multiple numbers together using place value and regrouping. For subtraction, it demonstrates subtracting numbers with multiple digits using place value and regrouping ones as tens or hundreds when needed. Multiplication examples show setting up problems by multiplying each digit of one number by each digit of the other. Homework assignments are provided for additional practice.
Unit 2 order of operations
This document discusses order of operations in math and explains that multiplication and division must be performed before addition and subtraction to get the correct answer. It provides examples like 3 + 6 x 4, where following the order of operations (BEDMAS) gives the answer of 27 rather than 9 x 4 = 36. The document also lists several common mnemonics like PEMDAS, PLEASE EXCUSE MY DEAR AUNT SALLY, and BIG ELEPHANTS DESTROY MICE AND SNAILS that remind students of the proper order of operations.
Unit 2 order of operations
This document discusses order of operations in math and explains that multiplication and division must be performed before addition and subtraction to get the correct answer. It provides examples like 3 + 6 x 4, where following the order of operations (BEDMAS) gives the answer of 27 rather than 9 x 4 = 36. The document also lists several common mnemonics like PEMDAS, PLEASE EXCUSE MY DEAR AUNT SALLY, and BIG ELEPHANTS DESTROY MICE AND SNAILS that remind students of the proper order of operations.
Unit 2: Using Mental Math
This document discusses strategies for using mental math to solve whole number expressions. It provides examples of adding, subtracting, and multiplying whole numbers using strategies like rearranging terms, breaking numbers apart, and using compatible numbers. Students are assigned in-class work and homework problems applying these mental math strategies.
Prime and composite numbers
This document introduces prime and composite numbers. It explains that factors are numbers that are multiplied to form a product. Students are asked to find all factors of numbers from 2 to 20 and create rectangles using those factors. The document states that a number is prime if it only has two factors, 1 and itself, while a number is composite if it has more than two factors. Students are assigned homework problems related to factors and prime/composite numbers.
Unit 2 exploring multiples
This document discusses multiples and using a hundreds chart to solve problems about callers winning prizes in a radio contest. It explains that the 6th caller would not win a prize because 6 is not a multiple of 3 or 7. The 14th caller would win a hat since 14 is a multiple of 7. A hundreds chart is used to circle the multiples of 3 for t-shirts and cross the multiples of 7 for hats. More callers will likely win t-shirts since there are more multiples of 3 than 7 in the lower numbers. Key learnings are that multiples are found by counting on by the given number and a common multiple is a number that is a multiple of two or more numbers.
Unit 2 comparing and ordering numbers
This document discusses comparing and ordering whole numbers. It explains how to use a number line to tell which of two countries, Japan or Paraguay, has a greater area based on their numerical area values. It also provides area values in square kilometers for 10 different countries and has students order the countries from greatest to least area and determine the area differences between some of the countries.
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Lesson 8 dividing decimals by 10, 100, 1000, 10 000
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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Classifying figures
- 1. Math 6: Classifying Figures Geometry
- 2. Sort Figures by Irregular vs. Regular Regular: All equal sides and angles Irregular: unequal sides and angles
- 3. Sort triangles by number of sides An equilateral triangle has ALL equal sides An isosceles triangle has TWO equal sides. A scalene triangle has NO equal sides.
- 4. Sort triangles by number of angles pg. 87 Acute Triangle: All angles are acute Right Triangle: One angle is right Obtuse Triangle: One angle is obtuse
- 5. Sorting by number of sides Triangle: 3 sides Pentagon: 5 sides Hexagon: 6 sides Octagon: 8 sides
- 6. Sort by quadrilaterals Rectangles Parallelograms Trapezoids
- 7. Sort by Convex and Concave
- 8. In Class pg. 86 # 1, 2, 3, and 5
- 9. Homework pg. 36 + 37