Caty's Classroom

Build-A-Monster: Trig Ratios Geometry Halloween Activity (Google Slides + Printable) Students practice trig ratios (sin, cos, tan) to find missing sides while building creative Halloween monsters! Includes five versions + answer key + editable Google Slides file.

Bring some festive fun into your math classroom with this hands-on Trigonometry holiday activity! In this project, students practice solving right triangles using sine, cosine, and tangent, then use their answers to measure and build their own “Trig-mas Tree.” Once constructed, students can decorate their trees however they’d like — making this a great mix of math + creativity + just a little holiday joy. 🎄✨ This works beautifully as a review, station activity, partner task, sub plan, or last c

A simple, student-friendly cheat sheet for trigonometric ratios! This printable SOH CAH TOA cheat sheet helps students remember sine, cosine, and tangent formulas with a fun mnemonic and a clear design. Perfect for first-day trig lessons or quick reference cards.