Self Assessment Applets Elementary Math (Secondary)

Lew W. S.

Elementary Mathematics (Secondary/O Level) : Collection of applets for self learning and assessment


  • 1. Expand Product of Two Linear Expressions (Area Method)
  • 2. Solve Simple Linear Equations in One Variable ( Balance Concept)
  • 3. Slope Intercept Form of Equation of Straight Line - Quiz
  • 4. Coordinate Geometry of St Lines Revision Practice
  • 5. Calculation of Angle Bearings in Trigonometry
  • 6. Indices (Positive Integer Index) : Introduction
  • 7. Basic Concept of Inequalities with Integers
  • 8. Story of Rice on Chessboard : - Exponential Doubling
  • 9. Distance Between Two Points (Length of Line Segment)
  • 10. Determining the Equation of Straight Lines Given Two Points
  • 11. Application of vectors in physics
  • 12. Self Assessment: Solve Quadratic Equations by Factorization
  • 13. Self Review of Graphs of Functions
  • 14. Self Review Mensuration of Hemispherical Bowl
  • 15. Self Review Mensuration of Composite Hemisphere & Cone
  • 16. Self Review Mensuration of Composite Cylinder & Hemisphere
  • 17. Self Assessment : Quadratic Curve's Properties
  • 18. Self Assessment in Equation of Straight Line Graphs
  • 19. Practice Comparing Values of Two Integers using "<" and ">"
  • 20. Mean Median Mode -Tabulated Data with Visual Mode
  • 21. Averages (Mean, Median, Mode)
  • 22. Mean Median Mode -Tabulated Data with Visual Mode Example 2
  • 23. Area of Circles
  • 24. Self Review of Maps and Scales Problems
  • 25. Self Assess Distance Betw Two Points(Length of Line Segment)
  • 26. Distance Time Graph For Self Directed Learning
  • 27. Speed Time Graph for Self Directed Learning (Customizable)
  • 28. modern teacher
  • 29. find LCM and GCD
  • 30. Test yourself: Reflection
  • 31. Sorting decimals from least to greatest
  • 32. Randomized linear simultaneous equations
  • 33. Quadratic Quiz
  • 34. Planning template: Assessment with scoring
  • 35. Template Self Assessment Quiz with Scoring
  • 36. Introduction: Radians
  • 37. Boxplot Game
  • 38. AQR Section 16: Matching a Pie Chart to a Dot Plot
  • 39. AQR Section 17: Calculating Summary Statistics
  • 40. AQR Section 17: Dot Plot and Box-and-Whisker Plot
  • 41. Solving Simple Inequalities Game
  • 42. Matching Pair Quiz Template
  • 43. Equation of a Line (when given two points)
  • 44. Ordered Pairs, Cartesian Coordinates Self Assessment
  • 45. Operation of 3 Sets #2
  • 46. Linear Functions : Input Variable x and Output Variable y
  • 47. Evaluating unknowns in Linear Equations in Two Variables and Graphing the Equations
  • 48. Forming Equation of a Straight Line Given Graph of Line
  • 49. Changes in Inequalities due to Multiplication and Division
  • 50. Fun With Number Pattern
  • 51. Representing Numbers on a Number Line
  • 52. Completing the Square Method in Quadratic Functions
  • 53. Distributive Law of Multiplication over Addition ( Pictorial)
  • 54. Lines representing equations of the form x = a and y = c
  • 55. Simplifying Linear Expressions
  • 56. Number Patterns and Sequences Self Assessment Practice
  • 57. Slot machine
  • 58. Area Perimeter Game - Easy
  • 59. Acute Obtuse or Reflex Angles
  • 60. Venn Diagram 2 Set Quiz
  • 61. Quadratic Formula - Approximate Solutions
  • 62. fractional exponents
  • 63. Game on Gradients of Straight Lines
  • 64. Gradient of Line Self Quiz
  • 65. Quiz on Combining Like Terms 合併同類項：測驗
  • 66. Function Machine
  • 67. Graphing Linear Functions (II)
  • 68. Number Patterns and Sequences (Set 1) Self Assessment Practice
  • 69. Converse of Pythagoras Theorem : Self Assessment
  • 70. Equivalent Linear Equations
  • 71. Solving Linear Inequalities (Level 2) Game
  • 72. Significant Figures Self Directed Quiz
  • 73. Smallest n such that m × n is a perfect square
  • 74. Smallest k such that m × k is a perfect cube
  • 75. Finding the ratio x : y given algebraic equation ax + by = cx + dy
  • 76. Equation of Tangent to Curve - Self Assessment
  • 77. Coefficients of a general quadratic function
  • 78. Solve Linear Linear Fractions
  • 79. Simplifying Algebraic Fractions (Two Terms To be Expressed as Single fraction)
  • 80. Solving Equation with Expressions on Both Sides and Intersection of Two Graphs
  • 81. (Self running) Expand and Simplify Basic Algebraic Expression with Brackets
  • 82. Basic Algebra : Simplifying Expressions (1)
  • 83. Self Assessment (Record to Google Sheet): Graphs of Quadratic Functions such as +/- (x-p)^2 +q
  • 84. Quiz on Gradient : Calculation of gradient
  • 85. Exercise: Simplify Complex Fractions
  • 86. Algebric puzzle for (a+b+c)²
  • 87. Self Review on gradient and y intercept for y = mx + c, ax + by = c, ax + by + c = 0
  • 88. Equation of a Straight Line Given Linear Graph (Practice)
  • 89. Significant Figures Self Directed Quiz
  • 90. Significant Figures Self Review 2
  • 91. Approximation using Significant Figures
  • 92. Representing inequalities on a number line (translated)
  • 93. Solving Simple Fractional Linear Equation (1)
  • 94. Ordering Rational and Irrational Numbers (Number Sense)
  • 95. Cartesian Coordinates (Self Directed Practice 2)

1.

Expand Product of Two Linear Expressions (Area Method)

Learn how to expand product of two linear algebraic expressions with two terms each in brackets.[br]Use the above applet to visualize how you can do expansion by thinking in terms of lengths and widths of rectangles.
Reflection :[br]Can you summarize and say in your own words, how to expand the product of two algebraic expressions [br](two terms each in brackets)?[br]Are you able to expand products of more than two algebraic expressions, and each of more than two terms?
– Lew W. S.

2.

–

3.

–

4.

–

5.

–

6.

–

7.

–

8.

–

9.

–

10.

–

11.

–

12.

–

13.

–

14.

–

15.

–

16.

–

17.

–

18.

–

19.

–

20.

–

21.

–

22.

–

23.

–

24.

–

25.

–

26.

–

27.

–

28.

–

29.

–

30.

–

31.

–

32.

–

33.

–

34.

–

35.

–

36.

–

37.

–

38.

–

39.

–

40.

–

41.

–

42.

–

43.

–

44.

–

45.

–

46.

–

47.

–

48.

–

49.

–

50.

–

51.

–

52.

–

53.

–

54.

–

55.

–

56.

–

57.

–

58.

–

59.

–

60.

–

61.

–

62.

–

63.

–

64.

–

65.

–

66.

–

67.

–

68.

–

69.

–

70.

–

71.

–

72.

–

73.

–

74.

–

75.

–

76.

–

77.

–

78.

–

79.

–

80.

–

81.

–

82.

–

83.

–

84.

–

85.

–

86.

–

87.

–

88.

–

89.

–

90.

–

91.

–

92.

–

93.

–

94.

–

95.

–

Information