# PDF for Year 9 and 10 Activities Book

25 activities, 116 pages

Complete book

# Algebraic fractions

Key concepts:Algebraic fractions
Apps: Main
Activity
Solution

# Expand algebraic expressions

Key concepts:Expand algebraic expressions
Apps: Main
Activity
Solution

# Heights: Histograms and boxplots

Key concepts:Draw histograms and boxplots using technology
Apps: Statistics
This activity uses the same data, the heights of a group of Year 9 students. Students use graphs to compare the heights of the two genders. The data is the same as in the previous activity.
Activity
Solution

# Comparing heights of girls and boys

Key concepts: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 data.
Apps: Statistics
Activity
Solution

# Laws of indices

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

# Indices

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

# 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 eActivity. This is a particularly useful approach where students are finding the algebraic methods for solving the equations taking up a lot of time.
Apps: NumSolve, eActivity
Activity
Solution

# 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