15:43 Similar Triangles - GCSE Maths
Excellent GCSE lesson on connected and overlapping similar triangles in parallel lines.
Problem solving - similarity
Use similarity to solve problems Assessed in the challenge questions (coming in wave 2), not on the practice sheet.
5 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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5:19 GCSE Maths - Similar Shapes (2026/27 exams)
Clear, concise walkthrough of similar shapes and using scale factors to find missing lengths.
18:31 #EP2 Similar Shapes with Ratios - Can You Solve These GCSE Questions? | Grade 6+ Problem Solving
Problem-solving practice combining similar shapes with ratios on exam questions.
11:40 Similar Triangles
Lots of worked similar-triangle examples using proportions to find missing sides.
7:37 Similarity example problems | Similarity | Geometry | Khan Academy
Two clear worked similarity problems finding unknown lengths with proportions.