![]() You're already familiar with the most common shapes, and may not be able to explain the differences between a square and a cube, or a circle and a sphere. A side, or vertex, is a straight line that forms part of a shape, and a corner, or vertex, is the point where two sides meet. The number of sides or corners of a shape changes from one to another. Credit cards, notes and coins, finger rings, photo frames, dart boards, houses, windows, magician's wands, high buildings, flower pots, toys, and balloons are all examples of geometric shapes. In the objects we see around us, we can find different basic shapes such as the two-dimensional square, rectangle, and oval, as well as the three-dimensional rectangular prism, cylinder, and sphere. Polygon: A polygon is a 2D shape with straight sides.Everything we observe in the world has a shape. Kite: A quadrilateral with two pairs of sides that are same length. One pair of diagonally opposite sides is equal. Parallelogram: A quadrilateral with both pairs of opposite sides parallel and both pairs an equal length. Trapezium: A quadrilateral with one pair of parallel sides. (Differs from a square in that angles are NOT 90˚). Rhombus: A quadrilateral with both pairs or opposite sides parallel and all sides equal length. Right-angled triangle: A triangle that has a right angle. Scalene triangle: A triangle with 3 sides that are all unequal. Isosceles triangle: A triangle with 2 equal sides. illustrate and name parts of circles, including radius, diameter and circumference, and know that diameter is twice the radiusĮquilateral triangle: A triangle with 3 equal sides and 3 equal angles.find unknown angles in triangles, quadrilaterals and regular polygons.recognise, describe and build simple 3D shapes, including making nets.draw 2D shapes using given dimensions and angles. ![]() ![]() classify 2D and 3D shapes by talking about parallel and perpendicular edges and faces.distinguish between regular and irregular polygons.find missing lengths and angles of rectangles.estimate and compare acute, obtuse and reflex angles.identify 3D shapes from 2D representations.identify lines of symmetry in 2D shapes.identify acute and obtuse angles and compare and order angles.compare quadrilaterals and triangles, based on their properties and sizes.identify horizontal and vertical lines and pairs of perpendicular and parallel lines.identify right angles and know that two make a half-turn, three make a three-quarter turn and four a complete turn.understand that a right angle is a quarter turn and know whether the turn is clockwise or anti-clockwise. ![]()
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