A comprehensive powerpoint that covers the topic of Similarity And Congruence: Similar Triangles. The Powerpoint models solutions to key questions in the topic, followed by questions for the students to do. The questions all have full working out and answers so students can identify where they have made mistakes.
The powerpoint has skill and mastery questions so students can understand the basics whilst also mastering the topic.
Suitable for foundation GCSE.
The download includes the full powerpoint and you are free to adapt it to suit your needs.
Topics included:
Similar Triangles
Skill Questions:
Simple Similar Triangles (Find Large)
Simple Similar Triangles (Find Small)
Similar Triangle in Triangle (Find Larger)
Similar Triangle in Triangle (Find Smaller)
Mastery Questions:
Similar Triangle in Triangle Give Ratio Scale Factor
Simple Similar Triangle in Triangle
Idenitfy Shapes That Are Always Similar
Prove Triangles Are Similar
A fully‑sequenced maths resource designed for clarity, consistency and real classroom impact. Each lesson includes differentiated question slides, carefully crafted learning goals, and a smooth progression that supports pupils in building secure understanding step by step.
Created with both mainstream and SEMH settings in mind, these materials reduce cognitive load, promote engagement, and offer flexible entry points for learners who benefit from structured, predictable routines. Ideal for teachers looking for high‑quality slides that are ready to use, adaptable, and grounded in strong pedagogy.
I have made nineteen different lessons of the nineteen different topics which are covered under Pearson’s Edexcel GCSE Mathematics Higher. These lessons include:
title
date
starter activities
warm up/ recall questions
learning goals
key words
contents
points to note
worked examples and guides
With these slides, anyone can walk into a lesson and teach what needs to be taught without having to worry about planning out content
Subtopics covered in this unit include:
congruence
proof
similarity
similarity in 3D
This resource includes:
A PowerPoint that can be used with a class,
A scaffolded student version of the PowerPoint with gaps for the students to fill in,
A differentiated worksheet with answers included.
This resource is suitable for Year 9 and 10 students and is linked to the Australian curriculum. This resource focuses on understanding the four similarity laws (SSS, SAS, RHS and AAA), writing similarity statements and filling out similarity tables.
Everything you need for a lesson observation is here. This is a very constructive lesson that you will not be disappointed with. This is an active inspire flipchart with worksheets.
Starter - Basic Scale Factor for enlargement of squares, rectangles and triangles with answers provided.
Discussion 1 - The starter links for discussing what similarity is from the shapes they enlarged. Students are shown two shapes and are asked if they are similar and why. This being that the lengths have been multiplied by the same number (SF) meaning they are similar. Identifying similarity, congruency and none is discussed here.
Activity 1 - Pair activity identifying similarity, congruency and none + answers
Discussion 2 - Identifying Scale factor from two shapes given they are similar. Working out SF and finding missing lengths. Challenging similar triangle shapes included for discussion.
Activity 2 - Differentiated worksheet task covering all of the above.
- Calculating SF
- Finding missing lengths using SF
- Finding missing lengths for complex triangle similar shapes
Answers included
Plenary - Provides a link to the real world or to test them against the GCSE question at the start to demonstrate good progress
Matching congruent triangles in order to find an unknown word. Answer includes which rule is used including ASA, SAS, SSA, SSS AND RHS. In one question students are also required to use angles in a triangle to find a missing angle.
This is 3 LESSONS on the different aspects of Congruency and Similar Shapes. The bundle contains the following lessons:
Lesson 1 - Congruency
Lesson 2 - Introduction to Similar Shapes
Lesson 3 - Similar Shapes in 2D and 3D
All resources are full lessons with starters, learning objectives, keywords, excellent teaching slides, examples, key questions, activities, worksheets, and plenaries.
For any issues, please email outstandingresourceshelp@gmail.com
and we will aim to respond within 48 hours.
Lessons are flat-packed (with limited editing) to maintain copyright protection.
We would greatly appreciate it if you could leave a rating and feedback.
A comprehensive powerpoint that covers the topic of Similarity And Congruence: Similar Triangles. The Powerpoint models solutions to key questions in the topic, followed by questions for the students to do. The questions all have full working out and answers so students can identify where they have made mistakes.
The powerpoint has skill and mastery questions so students can understand the basics whilst also mastering the topic.
Suitable for higher GCSE.
The download includes the full powerpoint and you are free to adapt it to suit your needs.
Topics included:
Similar Triangles
Skill Questions:
Simple Similar Triangles (Find Large)
Simple Similar Triangles (Find Small)
Similar Triangle in Triangle (Find Larger)
Similar Triangle in Triangle (Find Smaller)
Mastery Questions:
Similar Triangle in Triangle Give Ratio Scale Factor
Simple Similar Triangle in Triangle
Idenitfy Shapes That Are Always Similar
Prove Triangles Are Similar
Master Similarity and Congruence for GCSE Higher Maths with this comprehensive Try, Review, Identify, Practise workbook, designed to support students working towards grades 6–9.
This professionally structured resource provides complete coverage of Similarity and Congruence topics from the GCSE Higher specification using authentic past exam questions. Ideal for classroom teaching, homework, intervention, tutoring, or independent revision.
What’s Included
Full Similarity and Congruence topic coverage for GCSE Higher Maths
Structured Try, Review, Identify, Practise (TRIP) method
Two closely matched exam-style questions per skill
Questions taken from real GCSE past papers
Complete mark scheme (including shadow answers)
RAG (Red/Amber/Green) self-assessment on every question
Print-ready PDF – no preparation required
Topics Covered
Determining unknown lengths in separate similar shapes
Identifying angles and lengths in congruent shapes
Similar triangles sharing a common vertex
Similar shapes where one is inscribed inside another
Calculating surface area of similar solids when volumes are given
Relationship between length, surface area, and volume scale factors in ratio form
Formal congruence proofs for triangles (SSS, SAS, ASA, and RHS)
Complex problem solving with 3D similar shapes (including prisms and cones)
Applying scale factors to real-world contexts (e.g., paint volume vs. solid volume)
The Try, Review, Identify, Practise Approach
Each skill is practised using two parallel exam questions:
Try the first question independently
Review using the mark scheme
Identify mistakes or misconceptions
Practise immediately with the shadow question
This structure builds confidence, accuracy, and exam technique, helping students secure methods before working independently.
Perfect For
GCSE Higher Maths classroom lessons
Homework and weekly revision tasks
Intervention and catch-up sessions
Private tutoring
Independent study
Cover lessons (fully self-contained)
Why This Resource Works
Exam-authentic questions from past papers
Systematic coverage across 9 distinct skills
Structured repetition without overload
Encourages reflection using RAG ratings
Part of a complete GCSE Higher Maths revision course. Can be used standalone or as part of a structured revision programme – Week 14 in the Trip Maths sequence.
A comprehensive powerpoint that covers the topic of Similarity And Congruence: Congruent Triangles. The Powerpoint models solutions to key questions in the topic, followed by questions for the students to do. The questions all have full working out and answers so students can identify where they have made mistakes.
The powerpoint has skill questions so students can understand the basics whilst also working towards mastering the topic.
Suitable for higher GCSE.
The download includes the full powerpoint and you are free to adapt it to suit your needs.
Topics included:
Congruent Triangles
Skill Questions:
Find Lengths On Congruent Triangles
Prove Triangle Congruence (SSS)
Prove Triangle Congruence (ASA)
Prove Triangle Congruence (SAS)
Prove Triangle Congruence (RHS)
Prove Triangle Congruence
Editable Revision Guide for KS3 Maths to Improve Independent Learning of Congruence, Similarity, Area and Perimeter.
Content Includes: Area of 2D Shapes, Perimeter of 2D Shapes, Congruency, Similarity.
A MossyMaths module moving through congruence & similarity: visual and calculated congruence, enlargement & scale factor, calculation and use of algebra in linear similarity, then into dimensionality with the concepts of linear, area, and volume scale factors. Full of step by step explained examples and question sets.
A GCSE Maths Worksheet covering Similar Shapes & Congruencey
Suitable for GCSE Students sitting the 9 – 1, A-Level Maths students revision and some Key Stage 3 students.
Suitable for all the big examination boards including AQA, Edexcel, OCR and WJEC.
This was taken from my 150 Page workbook which covers many more maths topics. Please check it out here https://www.tes.com/teaching-resource/gcse-mathematics-150-page-summer-holiday-workbook-11940692
Or alternatively Check my store for other individual free worksheets such as this one. If you like it please leave a comment below, use the rating system or send us a message. All feedback is valued & welcome.
Enjoy!
A comprehensive powerpoint that covers the topic of Similarity And Congruence: Congruent Triangles. The Powerpoint models solutions to key questions in the topic, followed by questions for the students to do. The questions all have full working out and answers so students can identify where they have made mistakes.
The powerpoint has skill questions so students can understand the basics whilst also working towards mastering the topic.
Suitable for foundation GCSE.
The download includes the full powerpoint and you are free to adapt it to suit your needs.
Topics included:
Congruent Triangles
Skill Questions:
Find Lengths On Congruent Triangles
Prove Triangle Congruence (SSS)
Prove Triangle Congruence (ASA)
Prove Triangle Congruence (SAS)
Prove Triangle Congruence (RHS)
Prove Triangle Congruence
This unit contains full lesson plans and resources to teach the ‘Similarity & Congruence’ unit and is suitable for GCSE Higher & Foundation and KS3 students. The lessons are designed for the new GCSE specification.
The pack contains four detailed lesson plans, each accompanied with student worksheets and other classroom resources that you can use, including suggested support and extension activities for each lesson, as well as a homework activity to accompany the unit and an end-of-unit assessment.
The lessons contained are:
• Congruent Triangles
• Congruence & Angle Problems
• Similar Shapes
• Areas & Volumes of Similar Shapes
GCSE Maths similarity and congruence worksheet with 50 original problems and fully worked solutions covering congruence tests and scale factors.
This printable workbook develops similarity and congruence from identifying valid congruence tests through length, area and volume scale factors, similar triangles, maps and multi-step applications.
Contents:
SSS, SAS, ASA and RHS congruence
length scale factors
area and volume scale factors
similar triangles and equations
maps, models and compound applications
complete worked solutions
The download includes:
a 15-page student workbook
a separate 15-page worked-solutions booklet
50 original problems
properly typeset mathematical notation
Core, Standard and Challenge questions
Suitable for lessons, homework, revision, tutoring, intervention, cover work and independent practice.
This is an original, exam-board-neutral resource containing no copied examination questions. No examination-board endorsement is claimed.
This resource is suitable for KS3-KS4 pupils of mixed ability. The concise lesson clearly explains with example the topics of congruence and similarity so that to help the pupils to solve all relevant questions with ease and confidence.
Ten illustrated muliple-choice questions on congruence, similarity and enlargement, with answers. Always good in the classroom as a refresher from the previous lesson or as a quick plenary.
Plus a version for the learners to complete on their own, thanks to HBeath who revised it for individual use.
Another “Crack The Safe” activity but on congruence and similarity this time. This enables students to self-check answers as their answer needs to appear in the options. It should generate a bit of discussion too, but the intention for me is to use these as starters or plenaries. Amended question 2.