基本測量實作～估計值概念

本學習單課程脈絡：估計-->最小刻度的影響-->估計值的概念與使用-->實作評量

圖片出處：https://www.guinnessworldrecords.com/news/2019/2/record-setting-anatomy-of-the-blue-whale-a-look-inside-the-largest-animal
學習單連結：基本測量學習單  列印時記得設定不變更比例

相關資源

https://printable-ruler.net/all-rulers/ https://www.printablerulers.net/ https://www.printablerulers.net/preview/Ruler_15-cm_by_mm 

https://www.blocklayer.com/scale-rulereng.aspx https://robbbb.github.io/VectorRuler/