494
edits
Changes
From Karnataka Open Educational Resources
→Activity No # 1 - Name of Activity
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=Activity No # 1 - '''Name of Activity'''=
=Activity No # 1 -'''Observation of simple permanent tissues'''=
==Estimated Time==
==Estimated Time==
30 minutes
==Materials/ Resources needed==
==Materials/ Resources needed==
A piece of stem, blade, dissection needle, a microscope, glass slide, cover slip, glass dish, methylene blue, glycerine, blotting paper etc.
==Prerequisites/Instructions, if any==
==Prerequisites/Instructions, if any==
Cut very thin sections of a soft stem and select a good section and observe it under microscope.Note the different types of cells you observe.
==Multimedia resources==
==Multimedia resources==
==Website interactives/ links/ simulations==
==Website interactives/ links/ simulations==
==Process (How to do the activity)==
==Process (How to do the activity)==
*Cut a soft piece of a plant stem(shrub) of 1 to 2 inches in length.
*Take very thin sections(10 to 20) of the stem and place it in a glass dish with water.
*Select a very fine section and place it on a glass slide.
*Add 1 to 2 drops of methylene blue on the section and a drop of glycerine.
*Cover the section with a cover slip gently and remove the extra stain with a blotting paper.
*Mount the slide on the microscope.
==Developmental Questions (What discussion questions)==
==Developmental Questions (What discussion questions)==
#How many types of cells do you observe?
#Do the different types of cells differ in their structure?
#Why do they differ in structure?
#How many types of simple permanent tissues can you observe?
==Evaluation (Questions for assessment of the child)==
==Evaluation (Questions for assessment of the child)==
#How can you differentiate parenchyma from collenchyma cells?
#How can you differentiate sclerenchyma from collenchyma cells?
==Question Corner==
==Question Corner==
'''To link back to the topic page'''
'''To link back to the topic page'''
[http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back]
[http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back]
