Slope
Rate of change
Use rise over run and the slope formula to compare two points.
Mathematics · Grade 8
Explore patterns, equations and right triangles.
Grade 8 mathematics grows through interactive labs. Explore slope, tables and equations, then see the Pythagorean theorem with three squares on a right triangle.
Available now
Linear Relationships Lab
Calculate slope from points, identify constant rate from tables, connect equations to graphs, and decide whether a relation is a function.
Linear equations
Use y = mx + b
Connect slope and y-intercept to an equation and its graph.
Functions
One input, one output
Recognise whether a relation is a function from ordered pairs and tables.
Available now · Geometry
Pythagorean Theorem Lab
See why the areas of the squares on the shorter sides of a right triangle add to the square on its hypotenuse. Start with 3–4–5 and practise finding missing sides.
Visual reasoning
Count the squares
Explore 3² + 4² = 5² as 9 + 16 = 25 in a true-to-scale diagram.
Geometry
Recognise right triangles
Identify the 90° angle and the hypotenuse opposite it.
Practice
Find the missing side
Use addition or subtraction of squares before taking a square root.