Water festival ppt课件内容预览:Water FestivalWhat happens when we freeze water?Where do we usually find this sign?We usually find this sign inatnear…is not allowed.Not suitable for …getting on withNot onlybut alsoguestsminusplusequalsturnfor a whileAfter a whilesounddifficultpointsIt doesn‘t matterallowedsuitableworkTime’s upWhat happensWhat doesneedWhat kindsWhere didfindWhy have we41+56=45-9=38+23=54-48=91-65=Water festival ime’s upWhat happensWhat doesneedWhat kindsWhere didfindWhy have we41+56=45-9=38+23=54-48=91-65=75+16=19+76=69+16=90-18=53-24=39+47=87-54=
课件关键字:water,festival
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