สรุป Geometry ฉบับเตรียมสอบ ได้ทันที!
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SHEET A FOUR/ MATH Lesson: Geometry For Primary 1-6 & Exam Practice o Entrance Exam Practice Question For Grade 7 3333333333 Sample E-book 8 pages 3333333
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Lesson: Geometry SHEET KA PUUR TX 065/ CONTENT Level Main Focus P1-P2 Identification P3-P4 Measurement Key Vocabulary Square, Cube, Vertex, Edge Parallel, Perpendicular, Degrees, Symmetry P5-P6 Formulas Area, Circumference, Volume, π ปิตัลเตร
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SHEET KA PUUR Lesson: Geometry Lower Primary (P1-P2): Shapes and Patterns • Primary 1: Identifying 2D shapes (circles, triangles, squares, and rectangles). Students learn to group shapes by color, size, or form and complete simple patterns. Primary 2: Introduction to 3D shapes (cubes, cuboids, cones, and cylinders). Students learn to identify faces, edges, and vertices. จูติวเตอร์ (
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SHEE Lesson: Geometry -1 P1-P2: IdentificationSquare, Cube, Vertex, Edge MEET THE SHAPE There are four main shapes we B CIRCLE: Round, no corners! SQUARE: RECTANGLE: 2 long sides, TRIANGLE: 3 straight sides, 3 corners! 4 equal sides, 2 short sides, 4 corners! 4 corners! see every day: • Circle: A circle is perfectly round. It has no straight sides and no corners. It looks like a cookie or a clock. •Triangle: A triangle has 3 straight sides and 3 pointy corners. It looks like a slice of pizza or a roof on a house. • Square: A square has 4 sides that are all the same length. It also has 4 corners. It looks like a dice or a window. • Rectangle: A rectangle also has 4 sides and 4 corners. But wait! It has 2 long sides and 2 short sides. It looks like a door or your pencil box.
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Lesson: Geometry ☺ Upper Primary (P5-P6): Area, Volume, and Complex Angles How to Solve Angle Puzzles When you see a diagram with a missing angle (usually labeled as x), just ask yourself two questions: • Is it a flat line? If yes, subtract the numbers you know from 180°. • Does it go all the way around a point? If yes, subtract the numbers you know from 360°. Let's try a quick puzzle! Puzzle A: Three angles are on a straight line. They are 50°, 70°, and x. What is the value of x? • Hint: 50+ 70 + x = 180 Puzzle B: You have four angles meeting at a point. Three of them are $90^\circ$ each. What is the fourth angle? Hint: 90 +90 + 90 + ? = 360
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Lesson: Geometry Middle Primary (P3-P4): Angles and Symmetry move from "naming" to "measuring." Primary 3: * Right Angles: Identifying if an angle is a right angle, or if it is greater/smaller than one. • Lines: Understanding the difference between perpendicular lines (which meet at 90°) and parallel lines (which never meet). • * Primary 4: Angles in Degrees: Learning to use a protractor to measure angles up to 180°. tric Pigures and drawing • Symmetry: Identifying symmetric figures and drawing lines of symmetry. • Rectangles & Squares: Learning the specific properties (e.g., all angles in a rectangle are 90°).
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SHEF FUN WITH SHAPE PATTERNS! What comes next? That's right! A Circle comes next. Lesson: Geometry. Shape Patterns A pattern is something that repeats over and over again. It's like a song for your eyes! Look at this pattern: Circle → Square → Circle → Square → ? What comes next? That's right! A Circle comes next. Fun Activity: Try It Yourself! Try It Yourself Question 1: Who am I? I have 4 sides. 2 sides are long and 2 sides are short. What shape am I? (Answer: A Rectangle)
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Lesson: Geometry- P3-P4: Measurement Parallel, Perpendicular, Degrees, Symmetry Primary 4: Symmetry (The Magic Mirror) A shape has symmetry if you can fold it in half and both sides match perfectly. • The fold line is called the Line of Symmetry. • Some shapes, like a circle, have many lines of symmetry. Others, like an irregular squiggle, have none! FUN WITH SYMMETRY! Fold it in half... Both sides match! Line of Symetry The Magic Mirror A circle has MANY lines! No matter how I fold it, the sides don't match! This shape has NONE!
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