Similarity

19 free Geometry activities for Similarity: study guide, planning, practice and printable.

• Assessment Readiness Check (Study Guide)

  A Similarity readiness check at three levels (CP2, CP1, Honors). Every problem and diagram is generated and independently verified, and the teacher key stays behind the teacher code.

• Daily Lesson Planner (Planning)

  Day-by-day lesson plans for Geometry, including Similarity: do now, notes, examples, practice, exit ticket, handouts and PowerPoint, all with verified problems.

• Worksheet Generator (Practice)

  Differentiated Similarity worksheets with accurate diagrams and a verified answer key. Choose skills, level and how many problems.

• Assessment Generator (Printable)

  Build Similarity quizzes and tests, versions A to C, with diagrams, open response and a verified teacher key.

• Similarity Four (Game)

  Connect Four for two teams on Similarity. A correct multiple-choice answer drops a disc; a miss shows the worked solution and passes the turn. Verified problems with diagrams, three levels and an optional timer.

  Topics: Scale factor and proportions, AA, SAS~ and SSS~, Triangle proportionality theorem, Perimeter, area and indirect measurement, Team game

• Similarity Flashcards (Practice)

  25 flashcards with worked solutions on similar figures and scale factor, AA, SAS and SSS similarity, similar triangles inside triangles, the Triangle Proportionality Theorem, perimeter and area ratios, and indirect measurement. Mark cards you need to practice and review them again.

  Topics: Scale factor and proportions, AA, SAS~ and SSS~, Triangle proportionality theorem, Perimeter, area and indirect measurement

• Similarity Picture Reveal (Game)

  Ten typed problems on Similarity. Each correct answer, checked by the independent verifier, uncovers a piece of a hidden picture. Worked solutions after each answer.

  Topics: Scale factor and proportions, AA, SAS~ and SSS~, Triangle proportionality theorem, Perimeter, area and indirect measurement

• Similarity Showdown (Game)

  A game board for Similarity: six skill categories, 100 to 500 points, CP2/CP1/Honors or mixed boards. Add up to eight teams, open a problem with its diagram, show choices if you want them, then reveal the worked solution. A new board every time.

  Topics: Scale factor and proportions, AA, SAS~ and SSS~, Triangle proportionality theorem, Perimeter, area and indirect measurement, Team game

• The Toy Workshop Theft (Game)

  Detective game: solve each problem to unlock a clue, clear suspects, places and methods off the case board, then name the culprit. Students type their answers.

  Topics: Similar figures, Detective game, Typed answers

• Similarity Tic-Tac-Toe (Game)

  Tic-Tac-Toe for two teams on Similarity. Claim a square with a correct answer; a miss lets the other team steal. Verified problems with diagrams and an optional timer.

  Topics: Scale factor and proportions, AA, SAS~ and SSS~, Triangle proportionality theorem, Perimeter, area and indirect measurement, Team game

• The Shrink-Ray Workshop (Game)

  Story-driven escape room for teams: five rooms with ciphers, hidden clues, figures and logic locks, a 10-minute timer, hints that cost time, and a final puzzle. Add #key to the address for the teacher answer key.

  Topics: Ratios and proportions, Escape room, Teamwork

• Similarity Cheat Sheet (Printable)

  Two-page printable cheat sheet for Similarity. Front: scale factors, similar figures and proportions. Back: similarity criteria, dilations, area and indirect measurement. Key vocabulary, worked examples with every answer checked, and common mistakes.

  Topics: Cheat sheet, Reference, Similarity, Unit 5

• Color by Number Generator (Printable)

  Make a color-by-number page for this unit: students solve numbered problems, with the diagram beside each one, and color a picture using a code of answers. CP2/CP1/Honors, up to three versions, colored answer key with worked solutions.

  Topics: Printable generator, Similarity

• Error Analysis Generator (Printable)

  Make an error-analysis worksheet for this unit: each student’s worked solution has one mistake to find, explain and fix, with the diagram shown. CP2/CP1/Honors, up to three versions, answer key with the correct solution.

  Topics: Printable generator, Similarity

• Partner Check Generator (Printable)

  Make a partner check for this unit: Partner A and Partner B solve different problems with the same answers, then compare. CP2/CP1/Honors, up to three versions, answer key with both partners’ solutions.

  Topics: Printable generator, Similarity

• Whodunnit Generator (Printable)

  Make a printable whodunnit for this unit: 10 clue cards with four answer choices, a case board and a Show Your Work page. Every wrong choice is checked to be wrong. CP2/CP1/Honors, up to three versions, and a teacher key.

  Topics: Printable generator, Similarity

• Stations Generator (Printable)

  Make station pages for this unit: choose 2–6 stations and 6–10 problems each, and the chosen skills are split across the stations. CP2/CP1/Honors, up to three versions, a one-page answer key and worked solutions.

  Topics: Printable generator, Similarity

• Similarity Millionaire (Game)

  A whole-class game show: 15 multiple-choice questions climb from warm-up to challenge on a prize ladder. Groups take turns in the hot seat with 50:50, Ask the Class and Hint lifelines. Fresh questions every game.

  Topics: Similarity, Whole-class game

• Dilation & Similarity Lab (Interactive)

  Dilate a triangle with a movable center and scale factor, and compare side ratios, angles, perimeter and area of similar triangles.

  Topics: Dilations, Scale factor, Perimeter and area ratios