Page 27 - FOOD & HUMAN NUTRITION F5

4. Guide students to set microscope and view the structure of
wheat starch in low and high magnification power of the
microscope. Task students to draw the observed structures.

5. Engage students in interactive activities to discuss the
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application of wheat starch in our daily life. Ensure active
participation of every student. Clear any misconception.

Safety precautions

Necessary precautions should be observed when using chemical
reagents for testing foods in the laboratory.

4.3 Extraction of corn starch

Teaching steps

1. Guide students to view video or animations showing corn
starch extraction, and guide them to note what they have
observed.
2. Assign students to extract corn starch from maize kernel.
Allow students to use various ways of preparing corn starch
as observed from watching videos or animations. Make
clarification where necessary.

3. Facilitate students to view the structure of corn starch in
low and high magnification power of the microscope. Task
students to draw and describe the observed structures.
4. Use question and answers or any other techniques for
students to describe the application of corn starch.

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