Math You Can See 看得見的數學

Your textbook already teaches the steps and gives you practice. This series does the one thing a book cannot do: it lets you move the pieces yourself and watch why the steps work. Every lesson has one model, a short English reading with Chinese a tap away, and a small game or two that only counts how many you got right on the first try. Nothing is timed, and there is no leaderboard.
課本和習作已經教了步驟、也給了練習。這個系列只做課本做不到的一件事：讓你自己動手移動那些東西，看見步驟為什麼行得通。每一課有一個模型、一篇英文短文（中文翻譯隨點隨看），再加一兩個小遊戲——只記你第一次就答對幾題，不計時，也沒有排行榜。

Every lesson also has a card called “How do you say it in English?” The hardest part of math in English is often not the vocabulary but the reading aloud: 305 is “three hundred five,” and 10² is “ten squared.” Each line on the card has a speaker button, so teachers can take it straight into a bilingual classroom. The series runs from the middle grades of elementary school to the end of junior high. Facts and readings are checked against the sources listed at the bottom of each lesson, and the numbers in every model are computed and tested.
每一課還有一張「這個用英文怎麼唸」卡。用英文上數學，最難的常常不是單字，而是唸法：305 唸 three hundred five，10² 唸 ten squared。卡片上每一列都有 🔊，老師可以直接帶進雙語教室。整個系列從國小中年級到國中三年級為止。每一課的事實與唸法都依頁尾列出的資料查證過，模型裡的數字都是自己算的，並有自動測試。

4 of 26 lessons are ready so far; more are on the way.
目前完成 4 課（共規劃 26 課），持續增加中。