直線 and 曲線: straight and curved lines
Distinguish line shape from length and read requests to connect points with a straight line.
A straight line
直線, read ちょくせん, means straight line. 二つの点を直線で結びました。 means joining two points with a straight line.
長い直線を引きました。 means drawing a long straight line. 長い gives its length characteristic, while 直線 gives its uncurved shape.
A curved line
曲線, read きょくせん, means curve. 緩やかな曲線を描きました。 means drawing a gentle curve.
曲線に沿って紙を切りました。 means cutting paper along a curve. に沿って identifies the cutting path.
Shape and number
直線を二本、曲線を一本描きました。 means drawing two straight lines and one curve. Preserve the count attached to each type.
曲線ではなく直線で結んでください。 asks for a straight rather than curved connection. It does not ask for no connection at all.
How many lines were drawn in 直線を二本、曲線を一本描きました?
Show the answer and why
Three: two straight lines and one curve.

