Tasked to modify an existing paper-based lesson on classifying triangles to be more multimedia (and mobile) in nature, I chose to create two separate lessons:

**Direct Instruction:** If teachers wanted to include a direct teach piece, the following videos would serve the purpose.

**Web 2.0/Computer:**

**Student Task 1**: Utilize the deck below to view the 7 mystery triangles. Check your understanding by flipping the card over to get the answer.**Student Task 2**: Draw a triangle to match the description for each of the mystery triangles using Paint or Smart Notebook Express (or a recording sheet).

**iPad:**

**Student Task 1**: Access the Mystery Triangle deck using an iDevice and the Flashcards* app:- Launch
**Flashcardlet**app. - Tap
**Flashcards**. - Tap
**+ sign**in upper right hand corner to Download from Quizlet. - Tap
**in the search space**. - Type “
**Techchef4u**”. - Tap
**Creator**and**Search**. - Select
**Mystery Triangle Exercise**. - Tap
**Add to Library.** - Tap
**Cancel**and tap**Library**to return to your personal Flashcard library. - Tap to select
**Mystery Triangle Exercise**to review deck. - Tap
**Study**and**start studying.** - Review all 7 cards in the deck:
**swipe**to go to the next card and tap**on a card**to see the back of the card. **Student Task 2**: Draw a triangle to match the description for each of the mystery triangles using Popplet Lite, iPen Free, or or Xnote.

**Extensions:**

- Have students create their own Quizlet deck for Mystery Quadrilaterals.
- Utilize Doodle Buddy, Story Lines for Schools, or TypeDrawing FREE to illustrate triangles.
- Have students make a talking triangle video for a specific triangle using Mad Lips.
- Have students create an instructional video to teach classifying triangles using ScreenChomp, Explain Everything, ShowMe, or Educreations. (See example Classifying Triangles video from Math Lambert).
- Have students create their own triangle song using Songify, Video Star, or Videolicious.

**See original Triangle Song and adaptation below:**

**More iLessons:**