章节大纲

  • How do you do long division?
    ::你是怎么做长分队的?

    Practice  your division skills in the interactive below. Later in this lesson, you will use division to find costs of various things given the whole and a percent.
    ::在下面的交互式课中练习您的分工技能。 稍后, 您将使用分区来寻找各种事物的成本, 以整体和百分之一来计算 。

     

     

    CK-12 PLIX Interactive: Repaying Money
    ::CK-12 PLIX 互动:还款

    T hink about how you can evenly divide money while using this PLIX.
    ::想想你如何在使用这个PLIX时 平均分配金钱。

     

     

     

    How much for each item on the menu?
    ::菜单上每个项目多少钱?

    lesson content
    Mexican Food

    The menu at a Mexican restaurant lists the price of  multiple items. Find the cost of each item  in an order. Given the total cost and number of each order item, use the interactive below to find the unit rate (the unit rate is the cost for one item).
    ::墨西哥一家餐馆的菜单列出了多个物品的价格。 查找每个物品的成本顺序。 根据每个物品的总成本和数量, 使用下面的交互方式来查找单价( 单价是一件物品的成本 ) 。

     

    INTERACTIVE
    Menu Division
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    • Fill in the cost for one of each item in the boxes using the information provided.
      ::利用所提供的资料,填写箱中每个物品中的一个的费用。
    • If you need to, round to the nearest cent.
      ::若您需要,请四舍五入至最接近的分数。
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    How much does a veterinarian get paid each day?
    ::兽医每天得到多少钱?

    lesson content
    Veterinarian

    Veterinarians, or vets, provide medical care to pets and other animals. In 2015, veterinarians got paid about $88,490 per year. Vets often work 6 days a week and get as much as 20 days off of work a year (not including weekends). 
    ::兽医或兽医为宠物和其他动物提供医疗护理。 2015年,兽医每年获得88,490美元。 葡萄干每周工作6天,每年最多休息20天(不包括周末 ) 。

    Given the details about the total amount veterinarians are paid and how often they work, use the interactive below to figure out the rate or how much a veterinarian gets paid for each day.
    ::鉴于兽医的薪酬总额及其工作频率的详细情况,请使用下面的交互方式来计算每天一名兽医的薪酬率或多少。

     

    INTERACTIVE
    Veterinarian Pay Calculator
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    • Change the operations and the number of days worked to find out how much a veterinarian gets paid for each day they work.
      ::改变手术和工作天数, 以了解兽医每天得到多少报酬。
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    Discussion Question
    ::讨论问题

    Vets often work between 5-7 days a week and take between 10-20 days off work.  Try changing these values in the interactive to figure out  which has a bigger effect on the pay rate per work day. Why is the effect on the pay rate bigger for one value compared to the other? Discuss your findings with your classmates.
    ::Vetes每周工作5至7天,休息10至20天。尝试在互动中改变这些数值,以找出对工作日工资率产生更大影响的原因。为什么一个值的工资率比另一个值的工资率影响更大?与同学们讨论你的调查结果。

    CK-12 PLIX Interactive: The Price of a Unit
    ::CK-12 PLIX 互动:一个单位的价格

    With this PLIX, you can experiment with changing the cost and the number of units to determine different .
    ::使用此 PLIX, 您可以尝试改变成本和单位数量, 以决定不同的 。

     

     

     

    What is the best phone plan?
    ::什么是最好的电话计划?

    lesson content
    Smartphone

    A family of 4 wants to start a new phone plan. They want to get the best deal they can, even if it means putting 2 people on 2 separate phone plans. The family compares several family phone plans. Given the total cost and number of lines of each carrier, use the interactive below to find the cost per line of each carrier . ( The phone company is called the "carrier" and each person on the plan is called a "line.")
    ::4个家庭想要开始一个新的电话计划。 他们想要得到他们所能得到的最好的交易, 即使这意味着在2个不同的电话计划中安置两个人。 家庭比较了几个家庭电话计划。 根据每个航空公司的总成本和线路数, 使用下面的交互方式来寻找每个航空公司的每行成本。 (电话公司被称为“ 承运人 ” , 计划中的每个人都被称为“ 线路 ” ) 。

     

    INTERACTIVE
    Cellphone Plan Table
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    • Find the what the rate is for each cellphone plan and input them in the table.
      ::查找每个手机计划的费率,并将其输入表格。
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       Remember this!
    ::记住这个!

    • When finding price ,  calculate the price per item.
      ::找到价格时,计算每个项目的价格。
    • A unit rate can also be thought of as a rate with a one in the denominator.
      ::单位率也可视为分母中有一个的单位率。
    • Divide the numerator of a fraction by the denominator to find the unit rate.
      ::将一个分数的分子除以分母以找到单位速率。