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Jenny last won the day on February 7

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About Jenny

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  1. Jenny

    After Primary Math 6B

    New Elementary Math is about 20 years old. It is more challenging, but some components are out of print, like the Teacher's Manual that has solutions and answers to the end of the chapter challengers.
  2. Jenny

    Intensive Practice 5B Topic 4

    It is sort of misplaced, since it is an inverse proportion.
  3. Jenny

    Intensive Practice 5B Topic 4

    9 workers -> 10 hours 1 worker -> 9 x 10 hours 8 workers -> 90/8 hours
  4. There are essentially 3 triangles. A large one which is composed of two smaller ones, one of which is shaded and one which is not. You have the height of the large one, and the height of the unshaded one. They both have the same base. So, subtract the area of the unshaded one from the area of the large one.
  5. Jenny

    What comes next?

    Singapore meaning the company Singapore Math? No, we do not have any specific recommendation. After Dimensions Math 8 students could do highschool geometry or algebra 2. I personally did a bit of geometry and then college texts for intermediate algebra or precalculus.
  6. Jenny

    Imperial and metric

    They all cover both systems of measurement, because they have been adapted for US so imperial system was added, but emphasis is more on metric system. US edition has a Home Instructor's Guide for grades 1-6, Standards edition for grades 1-5. Dimensions Math does not yet have a separate home instructor's guide, but the teacher's guide is quite usable, just adapt some of the activities. So if you like the looks of that edition, lack of a dedicated Home Instructor's Guide should not keep you from it.
  7. Jenny

    Singapore Math

    Define what you mean by heuristic vs holistic. See https://www.singaporemath.com/Singapore_Math_s/331.htm
  8. Jenny


    It is similar in approach to a certain extent i.e. concrete to pictorial to abstract, and use of bar models, and some mental math, and word problems, but follows UK standards which is behind Singapore's in some areas and hence behind Primary Math.
  9. Jenny

    Teachers Guides for Evaluation

    Please email school@singaporemath.com with your request.
  10. Jenny

    Mid-year switch?

    There are placement tests at http://www.singaporemath.com/Placement_Test_s/86.htm You can see table of contents by clicking on the title of any of the books. Also look at http://www.singaporemath.com/Scope_and_Sequence_s/120.htm
  11. Jenny

    sixth grade private school

    With regard to what our company sells, Dimensions Math 6 is for 6th grade, and probably a better choice than Primary Math 6 if you have not done any of the Primary Math books we sell. I suggest you get the textbook, in case topics do not line up exactly with what your child is doing in school.
  12. Jenny

    US Edition 6A Practice 3C

    It would be useful if you explain where you had difficulty with the problem, that is, what steps you did so far. Before |______| Meili |______|______| Sulin After |______|______|______|______| Meili |______|______| Sulin When you draw the after model, you make Sulin's the same length as before, and Meili's twice as long. Then, comparing to the before model, you can see that if you make the units the same, the ratio after becomes the equivalent ratio 4 : 2. So 3 units were added, and those 3 units are the 12 new books. Now you can solve the problem.
  13. Jenny

    Grade 5 Challenging Word Problems

    That is an algebraic solution. They have not been taught algebra in grade 5. But they can solve the problem using the bar diagrams.
  14. Dimensions Math, or Primary Math US edition or Standards edition, which both predate Common Core. We do not carry any books beyond grade 8.
  15. Jenny

    Challenging word problems grade 1

    You could use either one. They are not aligned lesson by lesson with any program. You just have to be sure you do the topics that correspond. I am not familiar with the one you found online to know whether it is more or less challenging than the one we sell. Pick what you like the best, it is just a supplement.