TYPES OF TRIANGLES Multimedia Lesson: Classifying by Sides & Angles

Supporting document included
This is an additional download that supports the video.
Product Description
Skateboards, mountain climbing, billiards… I love this stuff, and that's why I put it all into this song about triangles that is filled with real-world connections. We see triangles all around us, so it was easy to make this lesson especially relevant to the lives of students.

TYPES OF TRIANGLES: Worksheets, Game, Animated Video & More
| 2nd Grade - 5th Grade | *
♫♪ by NUMBEROCK ♫♪

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Video Comes With Tons Of Extras in Supporting Document Such As:


Animated music video [HD Video]
Our flagship product. Each takes 250+ hours to write & animate.

Lyric sheet for singing along
Your students can sing along as the music video plays.

Fill in the blanks/cloze (lyrics w/ some missing words)
After they watch the video, they master the math vocabulary by filling in the missing words.

Double sided worksheet with word problems
Well thought-out questions and word problems which challenge critical thinking skills.

Extra drills printable
Early Finishers - Not So Fast! Straightforward math problems to move towards mastery.

Printable Game
When activities are complete, check for concept mastery while having a bit of fun.

HW sheet
Video-Aligned homework that maintains the style and format of the animated video.

Colorful Digital Poster/Anchor Chart
High-Resolution anchor chart can be expanded/printed to any size and maintains clarity.

Short quiz/exit slip to check for understanding
When activity is complete, check for concept mastery with short quiz.

Answer Key
Detailed answer key. Rest-assured, all answers are double and triple-checked for accuracy.

CD Quality Song File
Get the song on a CD file and play the song during break or lunch.

Clear Lesson Plan Sheet Illuminating Classroom Best Practice:
Get my personal recommendations for how to introduce the material and set-up the lesson as I do in class.


Video Summary

Skateboards, mountain climbing, billiards… I love this stuff, and that's why I put it all into this song about triangles that is filled with real-world connections. We see triangles all around us, so it was easy to make this song especially relevant to the lives of students.

Learn how to classify triangles by their sides (scalene, isosceles, & equilateral) and by the angles (acute, obtuse, & right) in this ridiculously catchy rock song.


Additional Reasons to buy a NUMBEROCK Interactive Lesson?

1. We’ve just updated the product with a fun little game and a very unique resource which allows you to print our poster/anchor-chart in letter and poster sized prints. We think you’ll love the look of the posters in your classroom and enjoy the printable game as well.

2. Our videos will excite both your high-performing students and those you teach who may have special needs. The artistic, musical approach to math that we take allows for natural differentiation within an ideal blended learning environment.

3. Students in special education with autism, dyslexia, or other learning disabilities that affect their math comprehension will likely find themselves retaining math concepts more easily and for longer periods of time due to the multi-sensory approach that our videos take by appealing to both visual and auditory learners.

4. To keep it simple, we all have experienced how a catchy tune can burrow deep into our memories and stay there for years. This is the power of music. We employ this unique quality of song and then dress it up even more with creative animation as a means to help your students excel and have fun doing it!



The NUMBEROCK eBOOK With All Lesson Materials For Our 30+ Songs


Types of Lines | Anchor Chart, Worksheets, Word Problems & HD Music Video |
Ordering Decimals [ with PLACE VALUE ] Lesson Plan With HD Music Video
Quadrilaterals | HD Music Video, Anchor Chart, Worksheets, Word Problems |
Simplest Form: HD Music Video, Game, Word Problems, and Activities


About Me
I’m Mr. Hehn, and I’ve developed some excellent materials for my classroom throughout my 7 years as an elementary public school teacher that I’d love to share with you. I like to incorporate dancing, singing, and listening to music into my lessons. My project, NUMBEROCK, is a collection of music videos that teach/reinforce elementary school level mathematical concepts and primary grade numeracy to make learning math fun in a whole new way.



Isosceles triangles have two equal sides
like this mountain we’re about to climb;

and since one angle’s over ninety degrees,
an obtuse triangle is what we see.

If you add up every angle,
there are one hundred eighty degrees in a triangle.

If the length is equal on every side,
we say it’s equilateral, like this road sign;

and since every angle’s less than 90 degrees,
an acute triangle it will also be.

If skateboard ramps are your scene,
with three different sides they’re called scalene.

That triangle would also be called right
if a ninety degree angle is inside.

There are two ways to classify triangles:
by their sides and their angles,

like sails out on the high seas
can be right or isosceles.

Or look at the foot of this goose;
it’s scalene and obtuse.

When you break pool balls with a cue,
they’re equilateral and acute.

* UK Age Range:
| Year 3 - Year 4 - Year 5 |
KS2 Maths

Aligns with:

Triangle Types: The student is expected to apply knowledge of right angles to identify acute, right, and obtuse triangles.

CCSS 4.G.2 / 4.G.A.2
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