Instructional Video19:40
Curated Video

Draw polygons on isometric paper

Pre-K - Higher Ed
Pupil outcome: I can draw polygons on isometric paper. Key learning points: - Different patterns on the paper allow you to draw polygons with different properties. - A ruler helps to draw shapes accurately. - Mark the vertices of the...
Instructional Video20:13
Curated Video

Construct quadrilaterals with and without parallel and perpendicular sides

Pre-K - Higher Ed
Pupil outcome: I can use equipment to construct and compare quadrilaterals with and without parallel and perpendicular sides. Key learning points: - Construction strips allow you to create different polygons. - Lines are perpendicular...
Instructional Video19:54
Curated Video

Make and draw triangles on circular geoboards

Pre-K - Higher Ed
Pupil outcome: I can make and draw triangles on circular geoboards. Key learning points: - Three points on a geoboard can be joined to make a triangle. - Triangles can have different properties. - Different triangles can be created on...
Instructional Video24:26
Curated Video

Identifying which circle theorem to use

Pre-K - Higher Ed
Pupil outcome: I can analyse a circle problem and identify and use an appropriate circle theorem to solve it. Key learning points: - There are many circle theorems so it is important to be clear about each one - Extra lines can be added...
Instructional Video26:19
Curated Video

Checking and securing understanding of constructing the perpendicular bisector of a line segment

Pre-K - Higher Ed
Pupil outcome: I can use the properties of a rhombus to construct a perpendicular bisector of a line segment. Key learning points: - A rhombus can be constructed from two congruent isosceles triangles - The diagonals of a rhombus meet at...
Instructional Video25:54
Curated Video

The tangents from an external point are equal in length

Pre-K - Higher Ed
Pupil outcome: I can derive and use the theorem: the tangents from an external point are equal in length. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and...
Instructional Video26:05
Curated Video

Use the area of a triangle to calculate unknown measurements

Pre-K - Higher Ed
Pupil outcome: I can calculate unknown dimensions of a triangle with a specified area. Key learning points: - The area of a triangle is half the area of a parallelogram with the same perpendicular base and height. - The area of a...
Instructional Video29:44
Curated Video

Identifying perpendicular linear graphs

Pre-K - Higher Ed
Pupil outcome: I can identify, from their equations or graphs, whether two lines are perpendicular. Key learning points: - If two equations are written in the form y = mx + c then you can identify if they are perpendicular. - If the...
Instructional Video29:28
Curated Video

Solving loci problems in context

Pre-K - Higher Ed
Pupil outcome: I can solve problems involving a combination of loci. Key learning points: - Loci problems involve performing various constructions - The problem asks for these constructions within the context of the question - All...
Instructional Video30:23
Curated Video

The tangent at any point on a circle is perpendicular to the radius at that point

Pre-K - Higher Ed
Pupil outcome: I can derive and use the theorem: the tangent at any point on a circle is perpendicular to the radius at that point. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted...
Instructional Video32:35
Curated Video

Parallel and perpendicular lines on coordinate axes

Pre-K - Higher Ed
Pupil outcome: I can solve problems involving parallel/perpendicular lines on coordinate axes. Key learning points: - Parallel lines have the same gradient. - The product of the gradients of two perpendicular lines is -1 - Your knowledge...
Instructional Video33:43
Curated Video

Problem solving with circle theorems

Pre-K - Higher Ed
Pupil outcome: I can use my knowledge of circle theorems to solve problems. Key learning points: - Circle theorems can be used in situations involving circles - It is not always obvious that a circle theorem can be used - Sometimes you...
Instructional Video35:10
Curated Video

Perpendicular linear graphs

Pre-K - Higher Ed
Pupil outcome: I can prove the relationship between the gradients of perpendicular lines. Key learning points: - Two lines are perpendicular if they meet at right angles. - The product of the gradients of two perpendicular lines is -1 -...
Instructional Video0:58
Curated Video

Centripetal Force Explained: Why It's Perpendicular to Velocity

12th - Higher Ed
Discover the fundamental reason why centripetal force always acts perpendicular to an object's velocity in circular motion. This video uses a clear visual example to illustrate this key physics concept.
Instructional Video7:11
Curated Video

Angular Momentum of a Particle: Definition and Relation to Torque

12th - Higher Ed
This content defines angular momentum (ℓ) for a particle as the cross product of its position vector (r) and linear momentum (p), i.e., ℓ=r×p=m(r×v). It clarifies that angular momentum is a vector quantity defined with respect to a...
Instructional Video3:09
Wonderscape

Classifying Triangles by Their Angles: Acute, Right, and Obtuse

K - 5th
Triangles can also be classified based on their angles. An acute triangle has all three angles less than 90 degrees, a right triangle has one angle exactly 90 degrees, and an obtuse triangle has one angle greater than 90 degrees. No...
Instructional Video0:47
Curated Video

Polo

3rd - 8th
Los polos orbitales son las dos regiones de un planeta que están situadas en los extremos de su eje de rotación. Twig - Física
Instructional Video1:00
Curated Video

Radiación electromagnética

3rd - 8th
Onda con componentes magnéticos y eléctricos que oscilan perpendicularmente entre sí. Twig - Física
Instructional Video0:39
Curated Video

Presión

3rd - 8th
La presión se define como la fuerza ejercida por unidad de superficie y se mide en newtons por metro cuadrado, o pascales. Twig - Física
Instructional Video0:31
Curated Video

Normal (física)

3rd - 8th
En física, la normal es una recta perpendicular a una superficie. Twig - Física
Instructional Video0:38
Curated Video

Ángulo de reflexión

3rd - 8th
Cuando un rayo o haz es reflejado por una superficie, el ángulo de reflexión es el ángulo formado por el rayo reflejado y la recta perpendicular a la superficie en ese punto. Twig - Física
Instructional Video0:41
Curated Video

Ángulo de incidencia

3rd - 8th
Cuando un rayo o haz es reflejado por una superficie, el ángulo de incidencia es el ángulo formado por el rayo incidente y la recta perpendicular a la superficie en ese punto. Twig - Física
Instructional Video0:31
Curated Video

Normal

6th - 12th
In physics, the normal is a line perpendicular to a surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Instructional Video0:47
Curated Video

Pole

6th - 12th
Orbital poles are the two regions of a planet at the extremes of its rotational axis. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...