3.11 比较司-interactive
章节大纲
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How many tablespoons of milk for a hot chocolate?
::热巧克力要喝多少汤匙牛奶?Christine likes to make her hot chocolate with milk. Her recipe calls for cup of milk but Christine only has a tablespoon on hand. Her brother tells her that there are 16 tablespoons in a cup.
::Christine喜欢用牛奶做热巧克力。她的食谱需要12杯牛奶,但Christine只手里有一块桌布。她哥哥告诉她,杯子里有16块桌布。In this interactive, find how many tablespoons Christine needs by dividing by a fraction or by multiplying by that fraction’s reciprocal .
::在此互动中,通过除以一个分数或乘以该分数的对等值来发现克里斯蒂娜需要多少个表层。
What do you do all day?
::你整天都干什麽?There are 24 hours in a day. You spend some of that time sleeping and on a week day, you spend some of that time at school .
::一天有24小时。你花一些时间睡觉, 在一个星期的一天,你花一些时间在学校。Use the interactive below to map out your schedule of a normal school day and determine what fraction of the day you spend doing different activities. In the questions that follow, you will compare the how long you spend doing different activities by dividing their fractions.
::使用下面的交互效果来绘制您正常上课日的进度图, 并确定您从事不同活动的一天的分数。 在下面的问题中, 您将比较您从事不同活动的时间长度, 将其分数进行比较 。
How is your memory?
::你的记忆怎么样?Brainy! In the game of Memory, you turn over cards and try to find matching pairs. You have to try to memorize what is on each card so you remember which cards are pairs.
::在记忆游戏中, 您要翻转牌, 并尝试找到匹配的对。 您必须试着记住每张牌上的牌, 以便记住哪张牌是对的 。Play a memory against a bot in the interactive below. Afterwards, create fractions for both you and the bot by dividing the scores by the number of turns. Find the quotient of the fractions to see who did better and how much better did they do.
::在下面的互动中对一个机器人播放一个内存。 之后, 通过将分数除以转数来为您和机器人创建分数。 找到分数的商数来查看谁做得更好, 以及他们做得更好 。Discussion Questions
::讨论问题 讨论问题-
Compare how you played against the bot by finding a fraction of the number of pairs you made out of the total number of turns you used. Use phrases like "The bot performed
as well as me in the game of Memory." Or, "I did
as well as a bot in the game of Memory."
::比较一下你如何与机器人比对, 找到在你使用的转圈总数中你做的对数的一小部分。 使用“ 机器人在记忆游戏中表现了34, 和我一样”。 或者, “ 我做了113, 在记忆游戏中表现了1,1,1,1,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4 -
Is your quotient greater or less than 1? How does this indicate which fraction is greater?
::您的商数大于或小于 1 ? 这如何表示哪个分数更大 ?
How many pieces of fruit can you smash?
::你能粉碎多少块水果?Smash as many pieces of fruit as you can in the interactive below! Compare your fraction score between the first time you play and the second time. Divide the fractions to see how much better or worse you did the second time.
::在下面的互动中, 尽可能多地打碎水果块! 比较第一次和第二次的分数分数。 将分数除以显示第二次你做得更好或更糟 。Discussion Questions:
::讨论问题:-
Compare your scores to see if you improved on your second
round
. How many times better or worse did you do on the second round? Compare your results with your class.
::比较您的分数, 看看您在第二轮中是否有进步。 您在第二轮中的表现是多少倍好还是多少差? 将您的成绩与您的班级相比 。 -
You could also compare the two scores by subtracting. In what kinds of scenarios would someone make a comparison between two amounts using subtraction? When would someone compare two amounts using division?
::您也可以通过减法比较两个分数。 在何种情况下有人会比较两个乘减法的金额? 什么时候有人会比较两个使用除法的金额?
Summary
::摘要-
Divide two fractions to find how many times
larger
one is compared to the other.
::除以两个分数以找到一个比另一个大多少倍。 -
When dividing
fractions, convert any mixed numbers to improper fractions.
::当分割分数时, 将任何混合数字转换为不适当的分数 。
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Compare how you played against the bot by finding a fraction of the number of pairs you made out of the total number of turns you used. Use phrases like "The bot performed
as well as me in the game of Memory." Or, "I did
as well as a bot in the game of Memory."
