Formative Assessment Manual for Teachers
Metals and Non-Metals - Chapter 3
c.
What is the brown flaky substance?
d.
What are the common valencies shown by metal ‘M’?
Suggested Remediation:
●
Some students may find it difficult to remember various reactions and properties of
metals, their compounds and gases evolved during reactions of the carbonates and
sulphide ores with dilute acids. They may be encouraged to tabulate various reactions
of metals in general form and be familiar with all the reactions.
●
Revisiting chapter 1 ‘Chemical Reactions and Equations’ may be required for students
who find it difficult to write balanced chemical reactions.
●
Attention of the students may be drawn towards categorising the reactions into various
types studied in chapter 1.
Metals and Non-metals
Chapter 3
Assessment Technique: Multiple Choice Questions Based Worksheet
Objectives: To enable students to-
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Recall various physical and chemical properties of metals and non-metals.
●
Draw correlation between the oxide of an element and pH of its aqueous solution.
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Recall reactivity series of metals to predict the products of a reaction.
●
Apply the conceptual knowledge to daily uses of the elements.
Task:
Individual
Procedure:
The students may be given the following MCQ based worksheet after the teaching-learning of the
complete unit ‘Metals and Non-metals’ to strengthen the concepts.
Assessment Parameters: Each of the following questions may be assessed giving equal weightage
of 1 mark to each correct answer.
Student Worksheet:
Time: 30 minutes
Choose the most current in each of the following :
1.
Ail the following materials show property of malleability except
a.
Iron
b.
Graphite
c.
Aluminium
d.
Silver
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