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Study Plan

Identities — Study Plan

ICSE · Class 8 · Mathematics

A step-by-step study plan for Identities, ICSE Class 8 Mathematics: what to learn first, what to practise and when to revise.

75 questions28 flashcards7 formulas & key relations5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Identity and Special Products, 2. Expansion of Squares, 3. Cubes of Binomials.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 75 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Identities after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • An identity is true for every value of the variable.
  • Checking a few values can help confirm an identity.
  • If both sides always give the same result, the equation is an identity.
  • There are four special products of two binomials.
  • The sign pattern is very important.
  • The coefficient of x comes from adding or subtracting the two constants.
  • The product of a sum and a difference removes the middle term.
  • It gives the difference of squares.
  • It is useful for fast calculation.

Common Mistakes to Avoid

An identity is just any equation with variables.

In (a + b)^2, the middle term is b^2 or a^2 instead of 2ab.

In (a - b)^2, the middle term is positive because squaring removes the minus sign.

Memory Tips

Meaning of identity

Special products

First special product (x + a)(x + b)

Second special product (x + a)(x - b)

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Frequently Asked Questions

What are the important topics in Identities for ICSE Class 8 Mathematics?
Key topics in Identities include Identity and Special Products, Expansion of Squares, Cubes of Binomials, Application of Identities. Study these first, then practise questions on each for Class 8 exams.
How should I revise Identities for Class 8 exams?
Learn the core ideas first, then work through the 75 practice questions on Identities. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Identities

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