class 9th maths deleted syllabus
Answers
UNIT I-NUMBER SYSTEMS
Chapter
Topics
REAL NUMBERS
· Representation of terminating / non-terminating recurring decimals on the number line through successive magnification.
· Explaining that every real number is represented by a unique point on the number line and conversely, viz. every point on the number line represents a unique real number.
· Definition of nth root of a real number.
UNIT II-ALGEBRA
Chapter
Topics
POLYNOMIALS
· Motivate and State the Remainder Theorem with examples. Statement and proof of the Factor Theorem.
· x3+y3+z3-3xyz
LINEAR EQUATIONS IN TWO VARIABLES
Examples, problems on Ratio and Proportion
UNIT III-COORDINATE GEOMETRY
Chapter
Topics
COORDINATE GEOMETRY
No deletion
UNIT IV-GEOMETRY
Chapter
Topics
INTRODUCTION TO EUCLID'S GEOMETRY
Delete the Chapter
LINES AND ANGLES
No Deletion
TRIANGLES
Proof of the theorem deleted- Two triangles are congruent if any two angles and the included side of one triangle is equal to any two angles and the included side of the other triangle (ASA Congruence).
Topic Deleted-Triangle inequalities and relation between ‘angle and facing side' inequalities in triangles
QUADRILATERALS
No deletion
AREA
Delete the Chapter
CIRCLES
There is one and only one circle passing through three given non-collinear points.
If a line segment joining two points subtends equal angle at two other points lying on the same side of the line containing the segment, the four points lie on a circle.
CONSTRUCTIONS
Construction of a triangle of given perimeter and base angles
UNIT V- Mensuration
Chapter
Topics
UNIT VI-MENSURATION
AREA
Application of Heron’s Formula in finding the area of a quadrilateral.
SURFACE AREAS AND VOLUMES
No deletion
UNIT VI-STATISTICS & PROBABILITY
Chapter
Topics
STATISTICS
· Histograms (with varying base lengths),
· Frequency polygons.
· Mean, median and mode of ungrouped data.
PROBABILITY
No deletion