Presentation
Videos
https://www.khanacademy.org/math/cc-fifth-grade-math/properties-of-shapes/5th-triangles/v/scalene-isosceles-equilateral-acute-right-obtuse
https://www.pbslearningmedia.org/resource/mkcpt.math.g.triangles/classifying-triangles-by-angles-and-sides/
https://study.com/academy/lesson/classifying-triangles-by-angles-and-sides.html
Practice Activities & Worksheets
https://www.khanacademy.org/math/cc-fifth-grade-math/properties-of-shapes/5th-triangles/e/classify-triangles-by-both-sides-and-angles
https://www.mathsisfun.com/triangle.html
https://study.com/academy/practice/quiz-worksheet-classifying-triangles-by-angles-and-sides.html
https://www.riverdell.org/cms/lib05/NJ01001380/Centricity/Domain/289/Classifying%20triangles%20by%20their%20sides%20and%20angles%20-%20homework.pdf
