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Listed under:  Mathematics  >  Number (Mathematics)  >  Accuracy and precision

### Designing urban carbon sinks lesson

In this lesson, students learn about the role of vegetation as carbon sinks, conduct field work to evaluate local carbon sinks and explore urban design issues. Students asses their own carbon footprints using the carbon footprint calculator, learn about carbon offset, carbon farming and carbon storage programs. Students ...

### Measurement of error: Year 9 – planning tool

This planning resource for Year 9 is for the topic of Measurement of error. Students make considered estimations of measurements. They use percentages to calculate the size of errors in different circumstances. They estimate the accuracy of given measurements and the effects of rounding.

### Measurement of error: Year 10 – planning tool

This planning resource for Year 10 is for the topic of Measurement of error. Students make considered estimations of measurements. They use percentages to calculate the size of errors in different circumstances. They estimate the accuracy of given measurements and the effects of rounding.

### Rounding whole numbers: 2

This is a video demonstration of rounding a whole number to the nearest thousand. In the commentary, the presenter explains the thinking behind the process of rounding such numbers and presents a visual representation of rounding whole numbers using a number line. Practice questions with answers are included, and hints ...

### Invictus Games Sydney 2018 – Science – Stage 5

Modern prosthetics are developed to offer comfort and practicality in a range of complex environments. This Stage 5 unit, The science and technology of prosthetics and the physics of movement, explores a number of technological advances in the field of prosthetics including material strength, sensors and actuators and osseointegration. ...

### Experimentals: Building with different shapes

Did you know that the shape of an object can affect its strength? Watch as Ruben Meerman tests two columns of different shapes to see which can carry the greater load. Consider how engineers might use this information to build tall structures.

### Elliot and the Surfing Scientist: Pepper scatter experiment

Watch what happens in this pepper scatter experiment by Surfing Scientist, Ruben Meerman. Ruben demonstrates an important property of water, surface tension, by dipping a toothpick into water sprinkled with pepper. Find out what happens when detergent is added.

### The power of science photography

Visual art and science are often considered to be separate fields. Watch as Phred Petersen talks about the way he combines his passions of photography and science. What is the role of technology in enabling this crossover? What kinds of scientific discoveries can be assisted by high-speed photography? And how can scientific ...

### The greenhouse effect

This is an interactive resource about how greenhouse gases affect the climate. Students use a simulation to explore the atmosphere during the ice age and today. They change variables such as adding clouds, changing greenhouse gas concentrations and see how the temperature changes. They can then compare this to the effect ...

### Friction: Friend or foe?

What part does the force of friction play in our everyday lives? Friction can be an advantage (friend) or a problem (foe). Join interviewer Doug Traction and professors Static, Slide, Rolling and Fluid at the National Tribology Research Centre as they have forceful fun investigating friction. This video won a prize in the ...

### Elliot and the Surfing Scientist: Salt water density experiment

Discover what density is and how you can test the density of liquids. You will also find out about salt water and how its density is responsible for the circulation of water around the world's oceans.

### Home energy use

Reducing carbon dioxide emissions and sustainable energy use and are two of the major issues facing the world today. This project explores energy use in homes, and compares individual energy use with the class average and calculate and graph CO2 emissions.

### Green packaging lesson

This lesson plan engages students in finding ways to reduce plastic waste in food packaging. Students investigate problems created by plastic waste then observe ways these issues are being addressed. They design new packaging for food items that currently produce excessive waste then test their designs objectively. The ...

### Collisions and biomechanics lesson

This lesson plan investigates ways in which automobile manufacturers seek to reduce injuries that occur in car accidents. Students note the effects of car accidents on human bodies, the factors that influence the type and severity of injuries, and the safety ratings of vehicles in which they travel regularly. The resource ...

### experiMENTALS: Straw propeller

This resource contains a materials and instruction list and brief explanation for students about the process of creating a propeller using two bendy straws and a pair of scissors. A simple demonstration of one of Newton's Laws.

### Rate of Photosynthesis

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand how to measure the rate of photosynthesis and understand what factors affect it. A detailed method is suggested for measuring the effect of varying levels of light. There is a two-question quiz and a summary slide.

### iPlan

This resource contains ten IWB flipcharts as well as Flash alternative exercises and models how to plan a scientific investigation, choose the right equipment and follow safe working practices.

### Makey Makey boards

In this sequence of lessons students explore how electrical energy can be transferred and transformed in electrical circuits, using Makey Makey boards as the basis for experimentation and recoding of data.

### Thermal comfort – sustainability action process (Years 7–10)

This thermal comfort learning resource will guide students through an extended school based investigation. Students will develop and implement a chosen sustainability action and then evaluate and reflect on their success and their learning.

### Density Simulation (sk-Intel)

This resource is in the style of an 'authentic' scientific investigation. The investigation is set in a crime lab where finding the densities of the various items can solve the crime. The tool enables students to explore mass and volume for a variety of solids and liquids and hence determine their densities.