When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is _a transformation that leaves an object unchanged." Huh? Colm Kelleher unpacks this...

New ReviewIn this video I will show you two different ways to break the give triangle into 4 equal sections by area

Struggling to understand electric potential energy in a system of three point charges? In this AP Physics 2 lesson, Mr. P and the Flipping Physics crew walk through a conceptual and mathematical breakdown of how to calculate and...

If you ask a physicist, what is at the core of physics, you will hear symmetry. What is symmetry? Gauge theory explained simply.



Symmetry is about actions that don't change anything. If we take an...

Explore this classic gravitation problem where three masses form an equilateral triangle and a fourth mass is placed at the center. Learn how to calculate the mass required for gravitational force balance and why doubling the central...

Pupil outcome: I know that a regular polygon has sides that are the same length and angles that are the same size. Key learning points: - In a regular polygon, the sides are all the same length and the angles are all the same size - In...

Pupil outcome: I can explain how any parallelogram can be decomposed and the parts rearranged to form a rectangular parallelogram. Key learning points: - The area of a parallelogram is equal to the area of the rectangle created by...

Pupil outcome: I know that the angles in a triangle sum to 180°. Key learning points: - Angles on a straight line sum to 180 degrees. - Interior angles in triangles sum to 180 degrees. - Missing angles can be calculated using the sum of...

Pupil outcome: You can identify and describe the relationship between two regular polygons using scale factors Key learning points: - Two similar shapes can be described as being 'x' times greater or smaller than each other. - If one...

Pupil outcome: You can divide a 2-digit by a 1-digit number using short division (no regrouping or remainders) Key learning points: - Short division helps us to organise division by partitioning. - The language of unitising helps to...

Pupil outcome: You can divide a 3-digit by a 1-digit number using short division Key learning points: - Division of a 3-digit by a 1-digit number can be organised with short division. - The partial quotients are recorded above the...

Pupil outcome: I can identify different types of triangles and describe their properties. Key learning points: - All triangles have 3 straight sides and 3 vertices. - Equilateral triangles have 3 equal sides and 3 equal angles. -...

Pupil outcome: I can sort triangles in different ways based on their properties. Key learning points: - There are three types of triangle - equilateral, isosceles and scalene. - Some triangles can also be described as right-angled...

Pupil outcome: I can find lines of symmetry in 2D shapes and explain the link between lines of symmetry and number of sides in regular polygons. Key learning points: - A line of symmetry splits the shape into two equal parts which are...

Pupil outcome: I can use my knowledge of constructions to solve problems. Key learning points: - Shapes made from triangles can be constructed. - By investigation it is possible to accurately construct multiple polygons. - Shortest...

Pupil outcome: I can use my knowledge of bearings to solve problems. Key learning points: - Right-angled trigonometry may be useful when dealing with bearings. - Right-angled trigonometry can help you calculate more information. - Angle...

Pupil outcome: I can use my knowledge of right-angled trigonometry to solve problems. Key learning points: - Sometimes an answer may be best left in an exact form - When dealing with right-angled trigonometry, it is important to look at...

Pupil outcome: I can calculate trigonometric ratios for 30° and 60°. Key learning points: - The trigonometric ratios for 30° and 60° can be calculated using an equilateral triangle - The triangle should have lengths of 2 units - By...

Pupil outcome: I can use my knowledge of right-angled trigonometry to solve problems. Key learning points: - Sometimes an answer may be best left in an exact form - When dealing with right-angled trigonometry, it is important to look at...

Pupil outcome: I can calculate trigonometric ratios for 0°, 45° and 90°. Key learning points: - The trigonometric ratios for 45° can be calculated using a square - The square should have lengths of 1 unit - By splitting the square into...

Pupil outcome: I can recognise and name polygons with five or more sides and recognise the difference between regular and irregular shapes. Key learning points: - The prefix is derived from Ancient Greek. - A regular polygon has sides...

Pupil outcome: I can calculate the perimeter of compound shapes made from rectangles, triangles, parallelograms and trapeziums efficiently. Key learning points: - Before calculating perimeter, consider the shape and check you know the...

Pupil outcome: I can explain the properties of various polygons. Key learning points: - Quadrilaterals can be described and identified using their properties. - Triangles can be classified according to their properties. - Polygons can be...

Pupil outcome: I can classify triangles and know their relevant properties. Key learning points: - An equilateral triangle is a regular triangle and has particular properties. - A scalene triangle has specific properties. - An isosceles...