Free High School Programs Geometry Resources
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PUZZLE MATH: Special Right Triangles
In this one-page assignment students find missing side lengths and angle measures of special right triangles. Every possible permutation from given to missing side is used, and problems include ones where students are given integers that they must both multiply and divide by radical expressions. When applicable students must rationalize the denominator. Correct answers decode a secret message, providing immediate feedback for the learner as this free math worksheet is self-checking. If you enjoy
10th - 12th, Higher Education
Geometry, Other (Math), PreCalculus
Pi Day Puzzles and Coloring Pages for Middle School Students
Celebrate Pi Day with this engaging activities and projects pack that includes Pi Day Maze, Pi Day Math Vocab Double Puzzle, Pi Symbol Coloring Page, and Pi Digits Coloring Page - all for free! This pack is perfect for middle school students and offers a wide range of interactive and educational activities that will help them develop important skills while having a great time.The Pi Day Maze is a fun and challenging activity that will test your students' problem-solving skills. They can navigate
5th - 9th
Geometry, Math
Also included in: Math and Science Entire Year Mega Bundle for Middle and High School
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Pretty Construction Project
On this project, students will explore the use of a compass and a straight edge to create accurate designs using the basic geometric constructions.
Expectations
- Accuracy — All lines must be carefully drawn with a pencil using only a straightedge, and compass. There should be no freehand drawing.
- Neatness — Attention to the look and neatness of the designs is important.
- Creativity — The original design should be unique and show some planning and effort.
- Effort – The more detailed, planne
8th - 11th
Geometry, Math
Halloween | Geometry | Haunted Mansion Angles | TEKS
🏰 Halloween | Geometry | Haunted Mansion AnglesStudents calculate complementary, supplementary, vertical, and polygon angles in a haunted mansion setting. ✅ Includes: TEKS alignment for angle relationshipsLearning Intention & Success CriteriaMansion worksheets + graphic organizersYouTube haunted house ambience + angle tutorials✨ Classroom Use: Fits geometry units or review activities. 🎃 Student Benefits: Develops reasoning, justification, and proof skills. ⚡ Why It’s Good
K - 12th
Geometry, Numbers, Other (Math)
FREE Interactive Coordinate Plane Mystery Picture | Quadrant 1 Digital Activity
This FREE interactive coordinate plane mystery picture activity gives students a fun way to practice plotting ordered pairs in Quadrant 1. Students open the activity link, select a coordinate from the coordinate tray, and click the matching point on the coordinate plane. Correct points lock into place. When all coordinates are placed correctly, the mystery picture is revealed. No student login is required. Teachers can copy and paste the student activity link into Google Classroom, Canvas, Schoo
4th - 12th
Algebra, Geometry, Graphing
5 Hard SAT Math Problems with Step-by-Step Solutions — Free Practice Pack
Are your students hitting a wall on SAT Math Module 2? These are the problems that separate a 650 from a 750. This free practice pack includes 5 of the hardest SAT math problem types — fully solved with step-by-step explanations written the way a tutor actually teaches them, not the way a textbook explains them. What's included: Two-way table percentage problem (the one where students divide by the wrong number)Similar triangles with trig (sin/cos relationship trap)Parabola system with exactly o
7th - 12th
Algebra 2, Geometry
3D Print Your Own Montessori Geometric Cabinet
Complete 6 Tray Set (Full Size + Compact A4 Versions) Over 100 years ago, Dr Maria Montessori designed beautiful hands-on materials to help children explore concepts through movement, touch, and observation. I’m working from that same philosophy — but adapting the materials for a modern world where many homes and classrooms now have access to affordable 3D printers. As a homeschooling parent, I originally designed this geometric cabinet for our own learning space because authentic Montessori mat
PreK - 12th
Geometry
Focus & Flow Homeschool Check-In | Daily Student Planner & SEL Tracker for K–6
Focus & Flow Homeschool Check-In: is a thoughtfully designed daily homeschool planner and emotional wellness tracker created to help students in Grades K–6 stay organized, focused, and emotionally aware throughout their learning day. Designed by educator Latoya Staple, M.Ed., this printable resource encourages independent learning, goal setting, self-reflection, and parent involvement in a simple, child-friendly format. Perfect for homeschooling families, learning pods, tutors, and independent
PreK - 12th
Geometry, Reading, Writing
MYP Maths Criterion A Trigonometric ratios formative task
This worksheet is perfect for homework or a formative check before an end of unit assessment. Comes with solutions to provide quick feedback and guide next steps based on identified gaps. The worksheet aligns with the MYP Maths criterion A strands Part 1: simple and familiar Part 2: more complex and familiar Part 3: challenging and familiar Part 4: challenging and unfamiliar Formatted as two-to-a-page so, if printed double-sided, it can fit on a single sheet of paper (with answers on a sep
7th - 10th
Geometry
Also included in: MYP Maths Criteria (A, B, C, D) Practice Tasks Bundle
August Trig Tuesday: Weekly Bell Ringers & Mental Math Review | HS Algebra-Calc
Say hello to Trig Tuesday – a Weekly Calculator-Free Trigonometry Practice for High School Math students! Looking for a consistent and engaging way to reinforce reference-angle trigonometry skills with your students? Trig Tuesday is the perfect solution! This no-prep, print-and-go resource offers targeted weekly trig practice that helps students build confidence evaluating common trig expressions and deepens their understanding of key trigonometric concepts. What’s Included: ✅ 5 practice pages
9th - 12th
Calculus, Geometry, PreCalculus
How Tall Is It? — MYP Mathematics Field Activity | Similar Triangles & Trig
A 75-90 minute outdoor field activity for MYP Mathematics students covering similar triangles and trigonometry (angle of elevation). Students choose a tall object nearby, then find its height twice — once using the mirror method (similar triangles) and once using a clinometer app (trigonometry). They record measurements on labelled diagrams, show full working, and compare both results with a structured reflection. What's included: 6-page print-ready PDF When to use it: After teaching both simila
8th - 10th
Geometry, Measurement, PreCalculus
International Pi Day Approximating pi Math Activities - high school activity
Students come up with their own approximation for pi. 2. They then look at historical
approximations and find the accuracy of them. 3. They then see how accurate their
.calculator gives pi to. Oh and it's for pi day (3/14) but feel free to use it whenever. If you use
.it, please review it.
6th - 12th
Decimals, Geometry, Other (Math)
Also included in: International Pi Day Math Activities Bundle - World Pi Day High School
Curve Your Thinking
In this Generations Skeptics bellringer, students cut out and compare a single curve, confidently judging whether it is longer or shorter than others as they move around the room. When they discover all curves are the same length, they confront how context distorts perception. The lesson uses this shared error to spark reflection on flawed thinking, misinformation, and the importance of intellectual humility across disciplines. For all free materials related to this lesson, click here: Curve Yo
5th - 12th
Basic Principles, General Science, Geometry
Midsegment Theorem Hands-On Introduction
A perfect introduction for students who have a hard time grasping the material through notes. This was created for my inclusion math 2 class. Note that all triangles can be measured by hand as they are "pretty" numbers.
9th - 10th
Algebra, Algebra 2, Geometry
Mathematics Exercise Series Thales’ Theorem
The worksheet features six progressively challenging exercises that cover various geometric configurations: Triangle Proportionality (Exercises 1, 2, 3, & 6): Students calculate missing side lengths and prove lines are parallel using both the basic theorem and its converse.Trapezoids and Tangents (Exercises 4 & 5): The series extends the theorem to complex figures like trapezoids and circles with common external tangents, requiring higher-level algebraic manipulation.Step-by-Step Solutions: A co
7th - 9th
Algebra, Geometry, Math Test Prep
SOHCAHTOA Poster & Display Set | Trigonometry Classroom Decor (Free Resource)
Decorate your math classroom and help students remember their trig ratios with this SOHCAHTOA Poster & Display Set! This free resource includes large printable letters that spell out SOH • CAH • TOA — perfect for Geometry, Precalculus, or Trigonometry units. Print, cut, and display the letters across your board or bulletin wall as a fun visual reminder of sine, cosine, and tangent relationships. ✨ What’s Included Printable SOHCAHTOA Letter Set (S, O, H, C, A, H, T, O, A) Ready-to-print PDF
9th - 12th
Geometry, Math Test Prep, PreCalculus
International Pi Day Maze puzzles activities printable worksheets
Students try to map the digits of Pi in a maze. Three varying levels of activities to try. Pi day
FUN
2nd - 11th
Decimals, Geometry, Other (Math)
Also included in: International Pi Day Math Activities Bundle - World Pi Day High School
International Pi Day Calculate pi using a formula school activity
Pi Day - calculate pi using 2 infinite series and a formula. Good use of a calculator and
rounding - perfect for Pi Day celebrations!
6th - 12th
Decimals, Geometry, Other (Math)
Also included in: International Pi Day Math Activities Bundle - World Pi Day
Escape the Equation: A Math Adventure (FREEBIE!!!!)
Engage your students in a math mystery they’ll never forget.This free sample is a sneak peek into Escape the Equation — a five-chapter, story-driven math escape where students use problem-solving and logical thinking to uncover clues and crack codes. What’s Included: ✅ A segment from Chapter 1: The Disappearing Teacher✅ A self-contained math puzzle students must solve to advance ✅ Narrative intro that hooks students immediately ✅ Printable student version + teacher key ✅ No QR codes, tech, or
8th - 10th
Algebra, Geometry, Statistics
CCSS
8.G.A.1
, 8.G.A.1a
, 8.G.A.1b
+41
Bilingual Montessori Parts of a Circle Control Chart (Chinese & English)
Parts of a Circle Control Chart There are 4 pages: - Traditional Chinese - Traditional Chinese with Zhuyin - Simplified Chinese - English Translations were based on terms found in Taiwanese textbooks. Tangents and secants are not technically PARTS of a circle. But I included it since it's taught in Geometry nomenclature altogether.
2nd - 9th
Geometry, Math
Visualizing Sustainability Project (High School Math)
In this enhanced learning experience, you will delve deeper into the analysis of real-world data by collecting information on natural resource consumption, such as water and electricity usage, from local government databases or sustainability reports. Utilize transformations and symmetry to create an art installation that not only represents this data aesthetically but also educates viewers on the patterns of consumption and the importance of conservation.
9th - 12th
Algebra 2, Geometry, Statistics
CCSS
HSA-CED.A.2
, HSA-REI.D.10
, HSG-CO.A.3
+8
3D - Spatial Development - Deductive Series - Part 2 of 3 - FREE
This affords a vehicle for teachers to use for developing 3D spatial skills - it is part 2 of 3 - Deductive Rectilinear Spatial Development.
As with Part 1, this appears difficult and in the latter cases of the problems, it is a mental puzzle. However, I used to MODEL and work these with my self-contained 5th grade class, and they can do it - highly recommend using interlocking 2 cm cube blocks with the mat - manipulative - so the kiddos can mentally visualize the process.
There are recommend
4th - 12th
Engineering, Geometry
Intro to Color Theory: Josef Albers from the Artist of the Month series
Bring geometry to life with this simple artist of the month art project. Do it once, or leave it on the shelf for your students to explore over and over again. Your class will become scientists and experiment with color mixing and color theory while building art appreciation and art history! After their work take them to the museum to see colors come alive!
PreK - 12th
Art History, Geometry, Science
CCSS
K.G.A.1
, K.G.A.2
, K.G.A.3
+3
3D - Spatial Development - Inductive Series - Part 1 of 3 - FREE
This affords a vehicle for teachers to use for developing 3D spatial skills.
This appears difficult and in the latter cases of the problems, it is a mental puzzle. However, I used to MODEL and work these with my self-contained 5th grade class, and they can do it.
There are recommendations. The teacher must practice until they are extremely adept at the process. I strongly recommend using interlocking cube blocks to build these isometric three (3) Dimensional figures PRIOR to working them ment
4th - 12th, Adult Education
Engineering, Geometry, Other (Math)
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