2026年6月9日 星期二

Science2

💯 Grade 4 Science 考前衝刺滿分特訓艙

| 音高耳力特訓 • 月球粗糙實驗 • 能量配對卡

💡 必勝關鍵:
Pitch (音高):指聲音的「尖銳度(高低音)」,脖子短、體型小、振動快的聲音尖(High Pitch)。
Loudness (響度):指聲音的「力量大(大聲小聲)」,用力吼叫聲音大(Loud)。

🔊 耳力大考驗:點擊下方按鈕聽聽看,誰才是【Lowest Pitch (最低音)】?

聽聽看聲音尖不尖
聽聽看聲音低不低
✏️ 考卷觀念延伸:當吉他弦拉得更緊 (Tighter) 時,音高(Pitch)會如何變化?
🌕 大衛必勝關鍵:
雖然月亮在夜空中看起來很亮,但它自己不會發光,而且它只反射了 12% 的陽光,這說明月球表面非常 Rough (粗糙、凹凸不平)!如果是平滑的 (Smooth),反射率就會非常高喔!

🔍 表面反射物理實驗:

🪞
Smooth Surface (平滑表面)

反射光線多

☄️
Rough Surface (粗糙表面)

反射光線少 (月球表面!)

✏️ 考卷 Part 3 單字填空複習(大衛要注意不要寫反喔):

🪟 Window (窗戶)
🪵 Block of wood (木塊)
🔋 大衛必勝關鍵:
考卷中大衛原本寫對了,卻用原子筆塗改掉,好可惜!讓我們重新把它牢牢記住:
1. Chemical (化學能):食物、石油桶、電池(儲存化學物質)。
2. Gravitational (重力位能):在高處、山頂上的物體(隨時會掉落)。
3. Elastic (彈性位能):拉開的弓、發條玩具、壓縮的彈簧(改變形狀)。

🎯 位能配對大考驗:請將正確的能量名稱填入對應物品旁

🛢️ Oil / Food / Battery (油桶、食物、電池)
🏔️ A bicycle at the top of a hill (山頂上的腳踏車)
🏹 A stretched bow / Wind-up toy (拉開的弓、發條玩具)

2026年6月8日 星期一

Science

⚡ Grade 4 Science Lab: 光與聲音科學實驗室

| 模擬音高實驗 • 光學大挑戰 • 核心觀念特訓

💡 聲學核心變數觀念:

Pitch (音高):由振動速度 (Vibration speed)決定。物體越短 (Short) 或越緊 (Tight),振動越快,音高越高!

Loudness / Volume (音量/響度):由能量 (Energy)決定。能量越多、距離越近 (Close),聲音就越響亮!

🎹 模擬樂器實驗:點擊觀察長短物體的音高變化
📏 Long Object (長物體) → Low Pitch (低音) 點擊振動 🔊
📏 Short Object (短物體) → High Pitch (高音) 點擊振動 🔊
🦁 誰的音高最低? (Lowest Pitch?)
📏

直線傳播

Light travels in a straight line.
光是沿著直線傳播的。

🌓

不透明體

The Moon is opaque.
日食中月球擋住陽光留下陰影,月球是「不透明」的物體。

🌑

月球表面

The Moon only reflects 12% of sunlight because it is rough.
月球只反射了12%的陽光,因為它的表面非常「粗糙 (Rough)」。

🌐 科技小常識:Fibre optic cable (光纖光纜)

考卷中提到用來快速傳遞全世界資訊的工具就是光纖!它主要由 Core (核心)Cladding (纖維包層) 以及 Plastic coating (塑料塗層) 組成,利用光在裡面不斷反射來傳送訊號喔!

⚠️ 這裡收集了考卷中容易掉入的 True/False (對錯陷阱題),快來挑戰看看:

1. With sound, loudness means the same thing as volume.
(在聲音科學中,Loudness[響度] 和 Volume[音量] 代表同一件事嗎?)

2. A sound will be louder if you are far from its source.
(如果你離聲源越遠[Far from],聲音會越大聲嗎?)

3. Smooth surfaces reflect more light than rough surfaces.
(平滑的表面比粗糙的表面能反射更多的光嗎?)

2026年6月7日 星期日

寫作單字

🐾 Different Types of Animals 核心單字互動特訓艙

對照 螢幕擷取畫面 (513).jpg 官方字彙表 | 點擊發音 • 繁中對照 • 5單字計數器

🚨 寫作終極考驗: 作文中必須正確使用至少 5 個下方表格中的核心單字!
🦁 Types of Animals
(動物類別)
⚡ Advanced Action Words
(進階動作動詞)
🌟 Reason Words
(形容詞/原因詞)
Arctic animals 北極動物
desert animals 沙漠動物
jungle animals 叢林動物
ocean animals 海洋動物
camouflage 偽裝 / 保護色
explore 探索
hibernate 冬眠
hunt 打獵 / 捕食
migrate 遷移 / 移居
navigate 導航 / 辨識方向
protect 保護
survive 生存 / 存活
amazing 令人驚奇的
colorful 色彩斑斕的
enormous 巨大的
fascinating 迷人的
magnificent 壯麗的 / 極好的
powerful 強有力的
rare 稀有的
unique 獨一無二的

💡 小提示:直接點擊單字卡,可以聆聽標準的「美式英文發音」喔!

🔍 考卷下半部的補充單字也加上中文了!請幫下列生物或地景找到正確的家:

🔊 Polar bear, Seal
(北極熊、海豹)
🔊 Sand dunes, Oasis
(沙丘、綠洲)
🔊 Tree branch, Canopy
(樹枝、樹冠層)
🔊 Coral reef, Dolphin
(珊瑚礁、海豚)
🔊 Scorpion, Coyote
(蠍子、郊狼)
🔊 Penguin, Ice cap
(企鵝、冰帽)

🎯 模擬作戰:選出你打算寫進作文的 5 個核心字彙!

打勾你想挑戰放進文章的單字,湊齊 5 個高分字吧:

目前已選定:0 / 5 個字
🎉 太完美了!這 5 個黃金必考單字記熟,作文基本分就穩穩到手囉!🚀

互動式寫作導航寶盒

✍️ Writing Assessment Review 寫作高分秘笈

對照 螢幕擷取畫面 (512).jpg 核心教材 | 段落結構 • 評分標準 • 寫作思維

🚨 DO NOT COPY! 請勿抄襲宣導

Read the example paragraph carefully. DO NOT copy the information or any sentences!

※ 範文是教你「如何動筆寫(How to write)」,而不是教你「寫出一樣的內容(What to write)」。

📝 Word List Review (字彙運用檢查)

在動筆寫你的文章前,請確認你符合以下標準(符合請打勾):

準備度 0%

🔍 點擊下方按鈕,觀察範文《Three Different Types of Animals》的結構:

Three Different Types of Animals

The three different types of animals will look different visually and physically because of environment, food source, and movement. The first type of animal is a vertebrate. For example, a mammal has a spine. It can move horizontally or vertically depending on its speed. The second type of animal is an invertebrate. It is usually small and doesn't have a backbone. It also can move differently depending on its environment. The third type of animal is an omnivore because it eats plants and meat. Animals like dogs and birds are omnivores. If an animal eats only things like leaves, grass, and fruits, it would be a herbivore instead. Finally, the volcano calms down and it stops erupting. But the process could start again at any moment! (Therefore, these animals have different features which makes them understand safely.)

(備註:此處混合了動物分類與製程描述,請孩子著重於句型轉折詞 First, Second, Finally 的架構學習喔!)

📐 參照 Outline Review 表格,在動筆前把你的點子填進來,理清寫作邏輯:

段落結構 我的寫作導航計畫(可在此線上輸入筆記)
INTRODUCTION
(引言/開頭)

💡 寫下你的主題句 (What is your top sentence? What are examples of it?)

BODY
(本文/細節)

💡 給出支持細節與原因 (What are the facts/reasons? What is the description?)

CONCLUSION
(結論/結尾)

💡 重新總結或寫下最終想法 (How can you apply or close your sentence?)

Our world 7

🌋 Unit 7: Volcanoes 互動式科學與英文學習寶盒

精心對照四年級 Unit 7 課本內容 | 英文發音 • 互動挑戰 • 即時對答案

核心單字 (Word) 中文意思與解釋 課本精選例句 (Sentence)
crust 地殼 地球的最外層。 The earth has a crust, mantle, outer core, and inner core.
magma 岩漿 地底下的熔融岩石。 Deep down, it is so hot that rock is melted. This is called magma.
lava 火山熔岩 流出地表的岩漿。 The flow of melted rock on the surface is called lava.
erupt 噴發 火山爆發。 A volcano erupts when magma explodes onto the surface.
steam & ash 水蒸氣與火山灰 The blast throws steam and ash into the air.

💡 點擊下方各狀態的卡片,看看課本(image_29.png)中是怎麼定義它們的喔!

🌋 Active (活火山)

👇 點擊看課本定義

課本定義: If a volcano is erupting, then it is active. (目前正在噴發或活躍中)

💤 Dormant (休火山)

👇 點擊看課本定義

課本定義: If a volcano is not erupting, but may erupt in the future, it is dormant. (目前在睡覺,但以後可能會醒來)

🪨 Extinct (死火山)

👇 點擊看課本定義

課本定義: If a volcano has not erupted in thousands of years and will not erupt in the future, it is extinct. (已經幾千年沒噴發,以後也不會再噴發)

💡 語法加油站:First Conditional (第一條件句)

課本句型公式:If + 現在簡單式動詞(V/Vs) , 主詞 + will + 原型動詞(V)

※ 請參閱課本 image_26.png 的連連看與造句,在空格中輸入正確格式並檢查答案吧!

1. If I go to Hawaii, I (see) volcanoes.

2. If ash (cover) the grass, the grass dies.

3. If rain hits the lava, it (turn) to steam.

Our world 8

🌍 Unit 8: Reduce, Reuse, Recycle 互動學習寶盒

適合四年級學童自主複習 | 結合語音、單字卡與文法互動

單字 (Vocabulary) 英文定義 (Definition) 課本精選例句 (Sentences)
reduce 減少 To use less of something. The three Rs of the environment are reduce, reuse, and recycle.
reuse 重複使用 To use something again. Reduce by choosing to use less energy. Reuse by finding new uses for junk.
recycle 回收再利用 To change waste into something new. Man-made things are crushed and melted down. They are then made into new things.
landfill 垃圾掩埋場 A place where trash is buried. Every day we make trash. Where does it go? Some of it is buried in landfills.
conserve 節約/保護 To protect or save something from waste. You can conserve instead of throwing away. Water can be conserved.
cardboard 硬紙板 (手寫) Thick, stiff paper used for boxes. It is made from paper. It is used to make shoe boxes. It is soft when wet.
chemicals 化學物質 (手寫) Substances used for cleaning or science. They are used to clean things. They can hurt your skin. Don't drink them!
metal 金屬 (手寫) A hard, strong material like iron or steel. This is used to make cans and also cars. It's used to make things that must be strong.

💡 挑戰一:被動語態與情態助動詞 (Passive with modals)

點擊題目,就能揭曉正確答案,看看自己寫對了沒!

1. Clothes (can/color) ___________ with natural dyes.
答案:can be colored
2. Save the bricks that (can/reuse) ___________, and the broken ones (can/throw away) ___________.
答案:can be reused / can be thrown away
3. Energy (may/conserve) ___________ by making good choices.
答案:may be conserved
4. Fleece sweaters (can/make) ___________ from recycled water bottles.
答案:can be made
5. Future cars (must/design) ___________ to run on electricity.
答案:must be designed

⏰ 挑戰二:When (當...的時候) 句型重組對照

當我們回收垃圾時,我們是在節約能源與材料!點擊看課本範例答案:

例句 1:當我們離開家時,我們關掉電燈。
課本解答:When we leave the house, we turn off the lights.
例句 2:當我去購物時,我走路或騎腳踏車。
課本解答:When I go shopping, I walk or go by bike.

社會測試

🕵️‍♂️ 時空特務 - 日治台灣變革挑戰

請根據你在課堂上的精準筆記,協助修正被時空反派打亂的歷史線索吧!


Science2

💯 Grade 4 Science 考前衝刺滿分特訓艙 | 音高耳力特訓 • 月球粗糙實驗 • 能量配對卡 🎵 音高(Pitch)與響度特訓 🌓 月球與光學性質 🔋 3種位能(Pote...