Thursday, May 3, 2012

The Math Challenge 5-4, 5-5 and 5-6

Task Sheet 1                                                                                       Date: 4 May 2012
Name of Group members: ___________________________________________________
Instructions:
There are three questions in the task sheet. You are to complete the task sheet in 30 minutes.
Step 1: Work as a group, solve the STAR question first. Present the steps and answer(s) clearly. (10 min)
Step 2: Input your group solution here. (5 min)
Step 3: Work on the other two questions. Present the steps and answer(s) clearly. (15 min)


Step 4: Refer to this spreadsheet. Comment on your friends' answers. If you are doing Q1, you will comment on Q2. If you are doing Q2, you will comment on Q3. If you are doing Q3, you will comment on Q1. (15 min) Post your comments on this blog.


1. Mrs Lim made some muffins to sell.  3/4 of them were blueberry muffins and the rest were strawberry muffins. After selling 420 strawberry muffins and 5/6 of the blueberry muffins, she had 1/5 of the muffins left. How many muffins did Mrs Lim make to sell?

  
2.   A basketball costs $25. A football costs $43 more. Mr Chan paid $2290 for some basketballs and footballs. He bought thrice as many footballs as basketballs.
a) How many footballs did he buy?
b) How much did he spend on basketballs?



3.  Dona had $180 more than Wei Kang. Dona spent 1/2 her money and Wei Kang spent 1/5 of his money. In the end, Dona and Wei Kang had the same amount of money left. Find the amount of money Wei Kang had at first.

29 comments:

  1. Regis,Shi Hui & Ye LongMay 4, 2012 at 10:46 AM

    The questions looks difficult but they are actually very easy to solve.Question 2 turned out to be a ratio question and we didn't notice.We think this activity was very fun like the previous ones.

    ReplyDelete
    Replies
    1. Regis,Shi Hui & Ye LongMay 4, 2012 at 10:47 AM

      We hope to do this again.

      Delete
    2. Regis , Shi Hui & Ye LongMay 4, 2012 at 11:21 AM

      We forgot to mention that question 2 was also a set question:)

      Delete
  2. Lim Zheng Quan Jun Yang JustinMay 4, 2012 at 10:58 AM

    Q2 We did not know how to do at first.We did not use the ration method

    ReplyDelete
  3. Pei Ying,Wei Kang,ConradMay 4, 2012 at 11:00 AM

    Qirah,Linus and Hao Yin,you have done very well and have use the method that Mrs Low taught you.

    ReplyDelete
  4. Glenn,Jayden and NicholasMay 4, 2012 at 11:02 AM

    We used the branching method for Q1, Q2:ratio and Q3: model

    We hope to do this again.

    ReplyDelete
  5. Ahmad, Shi Hui, Jun NengMay 4, 2012 at 11:02 AM

    Chin Hon, Fam Ling, Hoe Sheng, you have done well for the Math question. You had used the method Mrs Low taught you. Very well.

    ReplyDelete
  6. Wei Zhen, Calvin Fong and Hao RuiMay 4, 2012 at 11:04 AM

    WeiTing, Misha and Natalie
    For your method, how can you prove that $180 is 6 units ? I thinkn that you should not split the work in this way as not everyone gets the chance to solve the problem, I advised you split in this way: Everybody types one part, but everone contributes. :)

    ReplyDelete
    Replies
    1. Oh,okay,we will take your advice :)
      So how did you do it then?
      WT,M,N

      Delete
  7. Pei Ying,Wei Kang and ConradMay 4, 2012 at 11:06 AM

    Yap Zi Yang ,Isaiah Khoo and Jerron Lim,you have done Q3 wrongly.You should do the question again but good try :).

    ReplyDelete
  8. Avin, Calvin and FaaizahMay 4, 2012 at 11:06 AM

    To: Jonathan, Bryan and Ivan

    They asked for the thinking process, not for how you felt about the question. But the method was great though! :)

    ReplyDelete
  9. Aw Chin Hon,Aw Hoe Sheng,Fam Ling(Class5-5)May 4, 2012 at 11:06 AM

    In summary,for those doing Q1, many of your group got this question correct.For those of you who got wrong,do not be despondent and try over the question again. Most of the mistakes are due to carelessness. Well Done and Good Job!

    ReplyDelete
  10. Faustine, Desean and NathanMay 4, 2012 at 11:08 AM

    Good try, Wei Ting, Misha and Natalie. 180 is supposed to be 3u not 6u.In this method,you must multiply your final answer by 2.

    ReplyDelete
  11. Yong Xiang,Tammy,Zhi EnMay 4, 2012 at 11:09 AM

    Well Done,Pei Ying,Wei Kang and Conrad. You have done an awesome job.

    ReplyDelete
  12. Pei Ying,Wei Kang and ConradMay 4, 2012 at 11:10 AM

    We used the branching method for Q1,the NVT method for Q2 and equal fractions for Q3.

    ReplyDelete
  13. Victor Lai and Lam yarn MengMay 4, 2012 at 11:10 AM

    Calvin Dai, Avin Chan, Faaizah, you have done well for the Math question. You made full use of the method. Good!

    ReplyDelete
  14. Xavier, Ryan, Yan QingMay 4, 2012 at 11:14 AM

    Well done Yong XIang, Tammy and Zhi En. You got it correct!

    ReplyDelete
  15. Lim Zheng Quan,Justin, Jun YangMay 4, 2012 at 11:20 AM

    Question 2: At first, we did not know it was a ratio question but after seeing how Mdm Toh had gone through, we knew it was a ratio question.

    ReplyDelete
  16. we did not get the answer correct because we thought that we were supposed to find the total muffins sold. we found the total number of muffins sold. this question is quite confusing

    ReplyDelete
  17. bryan wong jonathan ivanMay 4, 2012 at 11:22 AM

    Question 3 can be used with two methods. I hope we can do this again.It is very fun and exciting.thanks

    ReplyDelete
  18. Darryl Chan, Jevon Tan and AlvisMay 4, 2012 at 11:22 AM

    Question 2 is about ratio but we could not figure it out when we first did the question.

    ReplyDelete
  19. Ryan,Alisha,MeganMay 4, 2012 at 11:22 AM

    The second question was ratio in disguise.A sentence can change the understanding of the question.Anyways, well done...

    ReplyDelete
  20. Alton,Jessie,Zhi QingMay 4, 2012 at 11:23 AM

    The question that was assigned to us was very confusing.We had a hard time solving the question.For question 1,it is the branching method,for question 2,is ratio while question 3 is the square and circle model.Eventually,we understand more when Mdm toh explains.

    ReplyDelete
  21. Max, Chun Yuen, Dong WangMay 4, 2012 at 11:23 AM

    for q1,we think it was easy with Max's help.
    It was not very challenging as it was done with Mdm Toh's help.

    ReplyDelete
  22. Marcel, Tevin And NabilahMay 4, 2012 at 11:23 AM

    Question 1 is quite tircky but we are able to solve it without any help. Many people who were assigned this question were able to solve it.

    ReplyDelete
  23. OWEN HO,TOK HUI TING AND BENEDICT LUM(WRITER)May 4, 2012 at 11:23 AM

    Benedict was very helpful and urging us not to give up.
    Hui ting is also very helpful as she helped out on difficult questions
    Owen is also like Hui Ting.He always help us to solve difficult questions (and I mean very very very difficult)
    But anyway,we stil cannot get any questions right.
    Bye Bye!

    ReplyDelete
  24. Sherlene, Sabrina Natalie MMay 4, 2012 at 11:24 AM

    Most of them got the correct answer for question 3. We think that they used the square and circle method. We are impressed who have done question 3 correctly.

    ReplyDelete
  25. Dawn,Yi Liang,Naqib think that Q2 is really hard.Very Good!

    ReplyDelete
  26. Qirah,Hao yin and Linus.May 4, 2012 at 11:34 AM

    Justin,Zhen Quang and Junyang, you guys had done a very well done job in answering Q1. Honestly, we had some problems in answering this question. That means that you guys could analyse questions like question 1 very well.

    ReplyDelete