Instructional Video21:30
Curated Video

Explore, sort and classify triangles

Pre-K - Higher Ed
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...
Instructional Video27:42
Curated Video

Formalising understanding of triangles from KS2

Pre-K - Higher Ed
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...
Instructional Video29:34
Curated Video

Determining which side

Pre-K - Higher Ed
Pupil outcome: I can identify which side length is missing and use the appropriate form of Pythagoras' theorem to calculate it. Key learning points: - The hypotenuse is the side opposite the right angle. - It does not matter which of the...
Instructional Video33:09
Curated Video

Length of a shorter side

Pre-K - Higher Ed
Pupil outcome: I can use Pythagoras' theorem to find the length of one of the shorter sides. Key learning points: - The sum of the squares of the two shorter sides equals the square of the longest side. - The difference between the...
Instructional Video34:16
Curated Video

Length of the hypotenuse

Pre-K - Higher Ed
Pupil outcome: I can use Pythagoras' theorem to find the length of the hypotenuse. Key learning points: - The sum of the squares of the two shorter sides equals the square of the longest side. - The longest side is always opposite the...
Instructional Video
Sophia Learning

Sophia: Pythagorean Theorem Proof

9th - 10th Standards
Find the area of several figures to prove the Pythagorean theorem. Complete quiz to check understanding. [5:16]
Instructional Video
Sophia Learning

Sophia: Relationships of Trigonometric Functions: Lesson 3

9th - 10th Standards
Relationships among the six trigonometric functions are explored in this lesson. It is 3 of 4 in the series titled "Relationships of Trigonometric Functions." Includes short quiz. [4:46]