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  • Everything in Basic.
  • Video Explanations.
  • AI Coach (Coming Soon).

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For a complete comparison of all plans and features, please visit our Pricing page.
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Is there an annual plan?

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Is there a monthly plan?

  • Yes. iSchool offers a monthly subscription plan for flexible learning.
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What Problem-Solving Heuristics are taught in Primary 6?

Primary 6 reinforces all heuristics taught in Primary 1–5 while introducing advanced percentage, ratio and unit-based strategies.
Relationships
  • More Than / Less Than (P1)
  • Times as Many (P2)
  • Equal Stage (P3)
  • Equal Stage Before (P3)
  • Equal Stage Change (P4)
  • Equal Stage After (P4)
  • Fraction to Units (P4)
  • Decimal to Units (P4)
  • Percent to Units (P5)
  • Percent of Different Bases (P6)
  • Percent Change (P6)
  • Ratio to Units (P6)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)
  • Model Times-as-Many (P2)
  • Model Stacking (P3)
  • Units Table (P5)
  • Model & Units Table (P5)

Problem-Solving Concepts
  • Repeated Identity (P2)
  • Working Backwards (P2)
  • Intervals (P2)
  • Sets (P2)
  • Systematic Listing (P2)
  • Number × Value (P3)
  • Unchanged Quantity (P3)
  • Unchanged Total (P3)
  • Unchanged Difference (P3)
  • Internal Transfer (P3)
  • Proportion (P3)
  • Proportional Exchange (P3)
  • Redistribute (P3)
  • Guess & Check (P3)
  • Make Supposition (P3)
  • Combined Repeated Identity (P4)
  • Remainder Concept (P4)
  • Branching (P4)
  • Common Numerator (P4)
  • Gap & Difference (P4)
  • All Change (P4)
  • Double If (P4)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
  • Units Method (P2)
  • Elimination (P3)
  • Units & Parts & Boxes (P3)
  • Units Equations (P5)
  • Fraction Units (P6)
  • Decimal Units (P6)
  • Units Manipulation (P6)
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What Problem-Solving Heuristics are taught in Primary 5?

Primary 5 reinforces all heuristics taught in Primary 1–4 while introducing additional relationships, techniques and unit-based methods.
Relationships
  • More Than / Less Than (P1)
  • Times as Many (P2)
  • Equal Stage (P3)
  • Equal Stage Before (P3)
  • Equal Stage Change (P4)
  • Equal Stage After (P4)
  • Fraction to Units (P4)
  • Decimal to Units (P4)
  • Percent to Units (P5)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)
  • Model Times-as-Many (P2)
  • Model Stacking (P3)
  • Units Table (P5)
  • Model & Units Table (P5)

Problem-Solving Concepts
  • Repeated Identity (P2)
  • Working Backwards (P2)
  • Intervals (P2)
  • Sets (P2)
  • Systematic Listing (P2)
  • Number × Value (P3)
  • Unchanged Quantity (P3)
  • Unchanged Total (P3)
  • Unchanged Difference (P3)
  • Internal Transfer (P3)
  • Proportion (P3)
  • Proportional Exchange (P3)
  • Redistribute (P3)
  • Guess & Check (P3)
  • Make Supposition (P3)
  • Combined Repeated Identity (P4)
  • Remainder Concept (P4)
  • Branching (P4)
  • Common Numerator (P4)
  • Gap & Difference (P4)
  • All Change (P4)
  • Double If (P4)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
  • Units Method (P2)
  • Elimination (P3)
  • Units & Parts & Boxes (P3)
  • Units Equations (P5)
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What Problem-Solving Heuristics are taught in Primary 4?

Primary 4 reinforces all heuristics taught in Primary 1–3 while introducing additional relationships and problem-solving concepts.
Relationships
  • More Than / Less Than (P1)
  • Times as Many (P2)
  • Equal Stage (P3)
  • Equal Stage Before (P3)
  • Equal Stage Change (P4)
  • Equal Stage After (P4)
  • Fraction to Units (P4)
  • Decimal to Units (P4)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)
  • Model Times-as-Many (P2)
  • Model Stacking (P3)

Problem-Solving Concepts
  • Repeated Identity (P2)
  • Working Backwards (P2)
  • Intervals (P2)
  • Sets (P2)
  • Systematic Listing (P2)
  • Number × Value (P3)
  • Unchanged Quantity (P3)
  • Unchanged Total (P3)
  • Unchanged Difference (P3)
  • Internal Transfer (P3)
  • Proportion (P3)
  • Proportional Exchange (P3)
  • Redistribute (P3)
  • Guess & Check (P3)
  • Make Supposition (P3)
  • Combined Repeated Identity (P4)
  • Remainder Concept (P4)
  • Branching (P4)
  • Common Numerator (P4)
  • Gap & Difference (P4)
  • All Change (P4)
  • Double If (P4)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
  • Units Method (P2)
  • Elimination (P3)
  • Units & Parts & Boxes (P3)
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What Problem-Solving Heuristics are taught in Primary 3?

Primary 3 reinforces the heuristics taught in Primary 1 and Primary 2 while introducing additional relationships, techniques and problem-solving concepts.
Relationships
  • More Than / Less Than (P1)
  • Times as Many (P2)
  • Equal Stage (P3)
  • Equal Stage Before (P3)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)
  • Model Times-as-Many (P2)
  • Model Stacking (P3)

Problem-Solving Concepts
  • Repeated Identity (P2)
  • Working Backwards (P2)
  • Intervals (P2)
  • Sets (P2)
  • Systematic Listing (P2)
  • Number × Value (P3)
  • Unchanged Quantity (P3)
  • Unchanged Total (P3)
  • Unchanged Difference (P3)
  • Internal Transfer (P3)
  • Proportion (P3)
  • Proportional Exchange (P3)
  • Redistribute (P3)
  • Guess & Check (P3)
  • Make Supposition (P3)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
  • Units Method (P2)
  • Elimination (P3)
  • Units & Parts & Boxes (P3)
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What Problem-Solving Heuristics are taught in Primary 2?

Primary 2 reinforces the heuristics taught in Primary 1 while introducing additional heuristics.
Relationships
  • More Than / Less Than (P1)
  • Times as Many (P2)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)
  • Model Times-as-Many (P2)

Problem-Solving Concepts
  • Repeated Identity (P2)
  • Working Backwards (P2)
  • Intervals (P2)
  • Sets (P2)
  • Systematic Listing (P2)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
  • Units Method (P2)
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What Problem-Solving Heuristics are taught in Primary 1?

Primary 1 introduces fundamental problem-solving heuristics that form the foundation for more advanced strategies in later levels.
Relationships
  • More Than / Less Than (P1)

Techniques
  • Model (P1)
  • Model Part-Whole (P1)
  • Model Comparison (P1)

Finding One Unit
  • Units Method (P1)
  • Units & Parts (P1)
  • Substitution (P1)
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What iSchool concepts are covered under the Algebra topic?

The topical concepts covered under Algebra include:
  • Algebra in One Variable
  • Simplifying Algebraic Expressions
  • Boxing
  • Algebra Substitution
  • Algebraic Fractions
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What iSchool concepts are covered under the Rate topic?

The topical concepts covered under Rate and Speed include:
  • Tiered Rate
  • Rate for One Object
  • Rate for More Than One Object
  • Filling a Tank
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What iSchool concepts are covered under the Data Analysis topic?

The topical concepts covered under Data Analysis include:
  • Picture Graph
  • Bar Graph
  • Table
  • Line Graph
  • Pie Chart
  • Right Angle
  • Average
  • Averaging Out
  • Two Averages
  • Min-Max Change
  • Average Change
  • Average with Repeated Identity
  • Average with an Unknown Quantity
  • Average with Min-Max
  • Cumulative
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What iSchool concepts are covered under the Volume topic?

The topical concepts covered under Volume include:
  • Volume
  • Volume of a Cuboid
  • Volume of a Cube
  • Cube View
  • Square and Square Root
  • Cube and Cube Root
  • Base Area
  • Base Area × Height
  • Surface Area
  • Partly Painted Surface Area
  • Height of a Cuboid
  • Filling Up with Cubes
  • Filling a Tank
  • Displacement
  • Volume Transfer
  • Volumes with a Common Base Area
  • Volumes with a Common Height
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What iSchool concepts are covered under the Area and Perimeter topic?

The topical concepts covered under Area and Perimeter include:
  • Length
  • Labelling
  • Formula
  • Rectangle
  • Square
  • Rectilinear Figure
  • Square and Square Root
  • Factors
  • Triangle
  • Equilateral Triangle
  • Isosceles Triangle
  • Right-Angled Triangle
  • Tiling
  • Folded Figure
  • Triangles with a Common Base
  • Triangles with a Common Height
  • Parallelogram
  • Rhombus
  • Trapezium
  • Circle
  • Circumference
  • Area of a Circle
  • Semicircle
  • Quarter Circle
  • Composite Figure Perimeter
  • Composite Figure Area
  • Filling Up with 2D Shapes
  • Cut and Paste
  • Leaf
  • Boomerang
  • Overlapping Area
  • Similar Figures
  • Surface Area with Unit Cubes
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What iSchool concepts are covered under the Measurement topic?

The topical concepts covered under Measurement include:
  • Scale Reading
  • Length
  • Mass
  • Money
  • Area and Perimeter
  • Volume
  • Estimation
  • Min-Max Change
  • Unit Conversion
  • Time
  • a.m. and p.m.
  • 24-Hour Clock
  • Duration
  • Timeline
  • Start and End Time
  • Time Zone
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What iSchool concepts are covered under the Angles topic?

The topical concepts covered under Angles include:
  • Right Angle
  • Estimation of an Angle
  • Protractor
  • Ruler and Set Square
  • Rectangle
  • Square
  • Triangle
  • Equilateral Triangle
  • Isosceles Triangle
  • Right-Angled Triangle
  • Circle
  • Parallelogram
  • Rhombus
  • Trapezium
  • Angles on a Straight Line
  • Vertically Opposite Angles
  • Angle Sum of a Triangle
  • Angles at a Point
  • Construction
  • Exterior Angle of a Triangle
  • Alternate Angles
  • Corresponding Angles
  • Interior Angles
  • Overlapping Angles
  • Sum of Angles in a Quadrilateral
  • Angle Properties within a Circle
  • Sum of Angles in a Star
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What iSchool concepts are covered under the Geometry topic?

The topical concepts covered under Geometry include:
  • Straight or Curved
  • Rectangle
  • Square
  • Triangle
  • Grid Squares
  • Grid Dots
  • Perpendicular and Parallel Lines
  • Symmetry
  • Equilateral Triangle
  • Isosceles Triangle
  • Right-Angled Triangle
  • Parallelogram
  • Rhombus
  • Trapezium
  • Nets
  • Cube
  • Cuboid
  • Prism
  • Pyramid
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What iSchool concepts are covered under the Patterns topic?

The topical concepts covered under Patterns include:
  • Odd and Even
  • Sets
  • Division with Remainder
  • Equal Intervals
  • Repeated Patterns
  • Square Numbers
  • Cube Numbers
  • Rainbow Method
  • Sum of Consecutive Numbers
  • Sum of Consecutive Odd Numbers
  • Sum of Consecutive Even Numbers
  • Multiples of the Sum of Consecutive Numbers
  • Product of Consecutive Numbers
  • Guess and Check

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