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Geometric Series

This series of interactive excel sheets help investigate geometric series and progressions.

The first sheet generates the terms of a geometric progression, for |r| ≥ 1, and the value of a further term. A new sequence can be generated at the click of a button.

The second interactive sheet demonstrates...

Graphical Solution of Equations

This program allows students to solve pairs of equations by drawing 2 graphs and looking at the points of intersection. The graphs can be cubic, quadratic or linear. The 1st interactive sheet allows students to plot pairs of graphs by changing the coefficients of y=ax3+bx...

Collision Lab

This simulation allows students to use an air hockey table to investigate simple collisions in 1D and more complex collisions in 2D. Students can experiment with the number of discs, masses, initial conditions, and can vary the elasticity and see how the total momentum and kinetic energy changes during collisions...

Forces in 1 Dimension

In this simulation students can explore the forces at work when they try to push a filing cabinet. They can create an applied force and see the resulting friction force and total force acting on the cabinet. There are charts that show the forces, position, velocity, and acceleration versus time.

Masses and Springs

In this simulation students can hang masses from springs, adjust the spring stiffness and damping, and even slow time. The lab can be transported to different planets and there is a chart which shows the kinetic, potential, and thermal energy for each spring.

[b]Sample Learning Objectives[/b]

*Explain...

Photoelectric Effect

In this simulation students can see how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.

[b]Sample Learning Objectives include:[/b]

*Visualize and describe the photoelectric effect experiment.

*Predict the results of experiments...

Online ecology one - measuring abundance and random sampling on a footpath

This online ecology practical, from SAPS, uses random sampling to measure the abundance of various different species on an area of grassland.

Objectives

To give students practice at

• using random sampling to measure the abundance of various different species on an area of...

Online ecology two - the distribution of species across a field

This online ecology practical, by SAPS, is designed to give students an opportunity to see how systematic sampling can be used to

• investigate changes in species richness across a footpath
• the distribution of species across a footpath

These online exercises are not intended as a...

Online ecology three - abundance and random sampling at Waun Las nature reserve

In this resource from SAPS, students learn about random sampling, diversity and different measures of abundance, before looking at close-up photographs of quadrats and using the field guide to identify them. The resources are intended to help students develop skills and plant identification techniques before going...

Maximum and Minimum

This series of excel sheets look at the turning points of quadratic and cubic functions. New examples can be generated on each sheet every time the resource is used.

The first interactive sheet shows the gradient at different points of a quadratic function. The following sheet gives four quadratics functions...