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• TLF-IDL7819

Observe the linear distance–time graph of a rocket travelling at a constant velocity. Calculate the average and instantaneous velocity of the rocket over different time intervals. Notice how as each time interval becomes smaller the rocket's average velocity is equivalent to its instantaneous velocity. Work out how the ...

• TLF-IDL7821

Observe the non-linear distance–time graph of a rocket travelling at a changing velocity. The distance, s, travelled by the rocket after t seconds is determined by the formula s(t) = t². Calculate the average velocity of the rocket over time intervals that become progressively shorter. Tabulate the results and look for ...

• TLF-IDL7823

Observe the non-linear distance–time graph of a rocket travelling at a changing velocity. The distance, s, travelled by the rocket after t seconds is determined by the formula s(t) = t³ – 2. Calculate the average velocity of the rocket over time intervals that become progressively shorter. Tabulate the results and look ...

• TLF-IDL7825

Use this revision tool to examine the relationship between functions and their derivatives by observing their graphs. Select a polynomial function (for example, f(x) = x³ – 3x²) from the menu. Estimate the gradients of the given tangents and position them on the graph of the function. Draw the graph of the derivative function. ...

• TLF-IDL7827

Observe the non-linear distance-time graph of a rocket travelling at a changing velocity. Calculate the average velocity of the rocket over time intervals that become progressively shorter. Tabulate the results and derive a formula for finding the instantaneous velocity at a given point. In the second activity, observe ...

• TLF-IDL8274

Test your understanding of distance–time graphs. For example, look closely at graphs of a triathlete's performance (distance against time) for the swimming, running and cycling legs of a triathlon. Interpret the graphs to answer questions about each of the race legs and the overall performance of that triathlete. Compare ...

• TLF-IDR11273

This photograph of a road sign suggests investigations of the different indicators of slope used in our environment. It may lead to explorations of trigonometric relationships in relation to gradient. Teachers are encouraged to scan all the ideas suggested here as relevant to the various year level groupings, as there is ...

• TLF-IDL757

Watch triathletes performing in swimming, cycling and running legs of a triathlon. See how distance-time graphs are used to represent and compare race performances. Examine axis units, scales and gradients to compare course and performance variables. For example, notice that a flat line on a graph shows that an athlete ...

• TLF-IDL10090

Explore the graphs of linear equations in the form y = mx + c. Observe changes to the gradient and y-intercept under various transformations. Alternately, change the equation and observe changes in the y-intercept or change the y-intercept and see how the equation changes.

• TLF-IDL1104

Compile a news article reporting results of a major triathlon. Look closely at graphs of a triathlete's performance (distance against time and distance against altitude) for the cycling leg of a course. Interpret the graphs to answer questions about the triathlete's peformance and the altitude of the course. Insert your ...