Parallel Lines Project
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Elliptical Orbits Project (PBL) - Precalculus Conic Sections & Eccentricity
This engaging Project-Based Learning (PBL) activity brings conic sections to life by having students explore how ellipses model real-world orbits. Students select a planet, moon, comet, or satellite and use research to gather key data such as eccentricity and orbital measurements, then create a mathematical model using the equation of an ellipse. They will construct and label a diagram, analyze how eccentricity affects the shape of the orbit, and present their findings through a visual project.
7th - 12th
Algebra, Geometry, PreCalculus
CCSS
HSF-IF.B.4
, HSF-BF.A.1
, HSG-GPE.A.3
+1
Christmas Triangular & Tetrahedral Numbers | Math Patterns Project I Grades 6-9
Teachers often struggle to maintain student engagement and academic rigor as the winter holidays approach. How can you combine festive fun with deep mathematical exploration for your 6th, 7th, 8th, and 9th grade students? Unwrap the magic of mathematics this winter season with the Christmas Math Project Triangular Tetrahedral Numbers Pattern Discovery Grades 6-9. This no-prep, project-based resource is your perfect solution for keeping middle and early high school students captivated while deve
6th - 9th
Algebra, Numbers, PreCalculus
CCSS
6.EE.C.9
, 7.EE.B.4
, 8.F.B.4
+1
Compound Inequalities Review Notes & Worksheets - 6th, 7th, 8th Grade Math
Teach and practice compound inequalities with these notes and interactive worksheets resource! Includes guided notes with teacher directions and 270 scaffolding exercises across multiple levels with answer keys. Help your students build confidence with compound inequalities using this versatile set designed for 7th to 10th grade math. This resource combines explanations with scaffolded practice problems that progress from easy to hard. Students will solve compound inequalities involving inte
7th - 10th
Algebra, Algebra 2, PreCalculus
CCSS
HSA-REI.B.3
, HSA-REI.D.10
Pi Day Geometry Activity | Archimedes, Polygons & Trigonometry I Grades 8–10
Stop Teaching 3.14. Start Proving Where It Comes From.This advanced Pi investigation goes beyond measuring. Students calculate. Justify. Prove. Designed for Grades 8–10, this activity transforms Archimedes’ method into a rigorous geometry lab. • Students approximate π using inscribed and circumscribed polygons. • They apply the Pythagorean Theorem and the Law of Cosines. • They compare measured and calculated values. • They explain why accuracy improves with more sides. This is not a craft.
8th - 10th
Geometry, Measurement, PreCalculus
CCSS
8.G.B.6
, 8.G.B.7
, HSF-TF.A.3
+1
Lesson Plan: Parallax and Trigonometry
This lesson engages high school students in understanding how trigonometry is applied to measure distances using the principle of parallax, a key method in astronomy. Students investigate how a shift in viewpoint creates a measurable angle that, combined with a known baseline, forms a triangle. By applying trigonometric functions and small-angle approximations, students calculate distances to objects, simulating the method astronomers use to determine the distance to nearby stars. Through intera
7th - 12th, Adult Education, Higher Education
Anatomy, Geometry, PreCalculus
CCSS, NGSS
HSG-CO.D.12
, HSG-SRT.C.8
, HSS-ID.B.6
+4
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
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