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    What People Are Saying

    I keep reordering these as students break them
  • Miriam
  • 03/28/2016
  • so why let students break slides? because that's the best way they learn that thick slides cannot be viewed using the highest power objective lens; that you can't adjust coarse focus using the highest power lens; and that you have to judge by the type of specimen what the optimal magnification is
    learn microscopes
  • mom
  • 03/20/2014
  • I use this to introduce microscopes to beginning high school students. A side benefit of the slide is that because it is a thick slide, students have cracked the cover slip by not following instructions about adjustment knob use. That is a lesson that they are unlikely to forget, as they are responsible to pay for damages.
    Great Slide for Depth of Field -- better than home made!
  • Anonymous
  • 03/06/2008
  • I teach a light microscope class at my homeschool support group. I used "homemade" crossed thread slides (using nail polish as the "mounting fluid") for a couple of years before buying this one. The improved clarity of the slide is worth it for teaching depth of field and focus!

    reward points

    Colored threads slide, crossed, w.m.

    Item# MS-CTHREAD

    $3.40 in_stock

    In Stock

    Product Overview
    This slide is used to help students learn to focus the microscope.

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    QUANTITY 1 - 9 10+
    PRICE $3.40 $3.05
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    • Product Details

      Colored threads slide, crossed, w.m.

      This slide is used to help students learn to focus the microscope. It has a yellow thread on the bottom, which is crossed by a blue thread, which in turn is crossed by a red thread.

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