# 3.9 數式的形容 Describing Expressions

STEM lessons + blocks

## Students will write and physically model mathematical expressions. Using SAM Blockly to further their understanding, students will learn multiple ways to write a mathematical expression.

Please note, students should have basic familiarity with the Blockly application before this lesson.

## 在本課程中，學生將編寫數式和建造數學模型。使用SAM Blockly進一步理解，學生將學習多種編寫數式的方法。

請注意，在本課程開始之前，學生應該基本熟悉Blockly應用程序。

• 45/90 minutes Describing Expressions  - Teacher Lesson Plan with notes (script) on lesson PowerPoint
• Describing Expressions -  Teaching PowerPoint
• Describing Expressions - Student Workbook (worksheet)

What is SAM Labs? (1 min)

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Webinar: How to use SAM Labs in the classroom? (30 mins)

SAM Blockly Software blocks used:

SAM Labs in the classroom videos   - see 14 videos here

The following tutorial, though is not directly related to this lesson, will give you a good feel of how SAM Labs works.

5 training videos  on SAM Blockly

The SAM Labs approach provides concrete solutions to link Computational Thinking to Coding in a non-technical, friendly approach for all teachers and learners.

See this document:   SAM Steam approach and computational thinking

References:

• BrainPOP movies/quizzes and games on Computational Thinking, Programming (coding), STEM and more.   These are good resources for teachers and students to clarify the meaning of key concepts.   Contact us if you like to have a trial.

BrainPOP Jr:  Computational Thinking Explained

BrainPOP Jr.

## Want to try some Cool, Crazy ideas that kids, adult, everyone loves?  Check the followings ideas guide from SAM Labs:

The Book of Crazy Cool Ideas

To see the step-by-step video on how to connect the blocks, please click blow:

1. Traffic light 交通指示燈 (easy, 1 player, gadget)
2. Kaleidoscope 萬花筒 (easy, multi-player, gadget)
3. Pattern-Bot  繪畫機械人(medium, multi-player, home hack)
4. Door Prank 惡作劇之門  (easy, 1 player, home hack)
5. Bridge 起動式橋樑 (medium, multi-player, gadget)
6. Flipbook 翻書動畫 (medium, 1 player, gadget)
7. Stirring Machine 攪拌機 (easy, 1 player, home hack)
8. Alarm 鬧鐘 (medium, 1 player, home hack)
1. Flashlight 史詩火炬 (medium, 1 player, gadget)
2. SyncDancers 同步舞者 (easy, multi-player, gadget)
3. Smart Watch 智能手錶 (medium, 1 player, gadget)
4. Pinball 彈珠球 (medium, multi-player, game)
5. Conductor 指揮者 (easy, 1 player, game)
6. Football game 足球比賽 (medium, multi-player, game)
7. Gameshow button 遊戲按鈕 (medium, multi-player, game)
8. Drawing Machine 繪圖機 (hard, 1 player, home hack)