四則運算 (加、減、乘、除)
簡單圖形的繪圖 (三角形、方形、圓形)
符號
函數
圖形的著色
星形
雪的結晶形
Learn mathematics (addition, multiplication, substraction and division).
Basic geometry shapes (triangle, square, circle).
Learn symbols
Learn functions.
Learn to apply colors to shapes.
Star shape
Snowflake
Based on https://www.george.andante.no/ by Terje Dahl