Count the flowers - A sampling exercise for science

Posted by: manda
Filed under: Homeschool Lesson Plans and General
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Sampling is a method scientists use to estimate the size of a population. It works best when the population is spread fairly evenly. How well would it work in your yard or garden? Would sampling lead you to the right answer?

Objective:

  • Learning to estimate based on a sample section
  • Relating math skills to science

Directions:

  • Divide your garden or a small part of your yard into equal sections.
  • Count the number of flowers blooming in one section. Multiply that number by the number of equal sections.
  • Write down your answer
  • Count the number of flowers in 2 sections and again multiply (only by half of the number of sections).
  • Write down your answer
  • Count the number of actual flowers and see how well the sampling worked! Which number was closer?

Submitted by: Janet

1 Comment »

257

Comment by manda

11/4/2009 @ 10:12 am

If you don’t have a yard or just don’t feel like going outside you can just spread some dry beans on part of a tile floor and use the tiles as your equal sections.

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