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Algebra for Year 9&10 – Expand algebraic expressions

Aim: Expand, factor and simplify algebraic expressions. Key concepts: Expand algebraic expressions ClassPad Apps: Main Activity Solution

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Data for Year 9&10 – How to use Heights: Histograms and boxplots

This activity uses the same data, the heights of a group of Year 9 students. Students will use graphs to compare the heights of the two genders. The data is the same as in the previous activity. Key concepts: Draw …

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Data for Year 9&10 – Compare two groups using statistics

Key concepts: Let’s compare two groups using statistics. Start with the raw data and draw stem and leaf plot before introducing the technology. The raw data includes some data entry errors and students have the opportunity to manage the real …

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Algebra for Year 9&10 – Laws of indices

Aim: Induce some index laws based on patterns. Key concepts: Induce some index laws based on patterns. ClassPad Apps: Main Activity Solution

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Algebra for Year 9&10 – Indices

Key concept: Develop an understanding of negative integer powers. ClassPad Apps: Main Activity Solution

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Year 9&10 Trigonometry: Ratios

Key concepts: Use the sine, cosine and tangent ratios to solve to solve problems involving right-angled triangles. While the equations can be solved by other methods, NumSolve is encouraged here and an extension is to save the formulae in an …

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Year 9&10 Trigonometry: Geometry app

Key concepts: Draw scale diagrams to solve problems involving right-angled triangles. This technique is useful whenever a scale diagram can be used to solve the problem. Apps: Geometry Activity Solution

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Slope or Gradient?

Unpacking linear functions and coordinate geometry activities for Year 9&10.   Key concepts for this activity centre on: Dynamically draw a triangle to calculate slope of a line segment. Introduce geometry link in an eActivity. Extend to length of the line …

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Midpoint

Unpacking linear functions and coordinate geometry activities for Year 9&10.   Key concepts for this activity centre on: Visualise the midpoint of a line segment and deduce a formula for its coordinates Apps: Geometry Activity Solution YouTube video demo Particularly useful …

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Slope intercept form: equation of a line

Unpacking linear functions and coordinate geometry activities for Year 9&10.   Key concepts for this activity centre on: Exploring the effects of changing parameters in the equation of a straight line using dynamic graphing. Use sliders and animate variation in the …

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