Identifying Acute vs Obtuse triangles

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Evolution of Shapes

Proof by Completing the Square — the formula for for solving quadratic equationss

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Sec2 Finding roots of quadratic equation by completing the square

____ Basically, for this method of “completing the square” of a quad equation “x^2 + bx + c = 0”, purposely choose to square (x + b/2) then, minus away the (b/2)^2

P6 fraction, ratio H: reverse model and unitary method

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P5 numbers, pattern

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P6 percentage (past PSLE)

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p5, p6 numbers, fraction, percentage H: area diagram

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P6 Ratio H: area diagram

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p5 p6 numbers H: model + unitary method

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P6 Ratio H: Area diagram

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P5 P6 area of triangle , fraction

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P6 Algebra

Fraction shaded (PSLE 2023)

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P5 P6 Geometry

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S3, S4, geometry, polygon

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p5, p6 geometry

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angle of elevation

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Area of circle with Pythagoras theorem

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Area of triangle (inference)

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P5, P6 area of triangle and rectangle

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P5, P6 volume, measurement

____ My solution

Sec4 Simplification of Algebra

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P5 P6 triangles

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P5 P6 area of triangle

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