In this SATIS Revisited resource students investigate how scientists monitor seismic activity and warn of impending volcanoes, the limitations of the scientific data collected, and resulting precision level of warnings.

In this fast-moving and dramatic activity, student groups become teams of volcanologists. They receive a budget with which to purchase and maintain monitoring instruments and satellite data for an active volcano. They decide which instruments to buy, and where to place...

This lesson develops the concepts of estimating the lengths of everyday objects, and converting between decimal and scientific notation.

An introductory activity looks at converting between decimal and scientific notation.

The main activity involves a collaborative exercise centred around picture...

Produced by Science & Plants for Schools (SAPS), in this investigation, students look at the concentration of glucose in isotonic sports drinks. This enables students to see if the drinks are, in fact, isotonic with the blood.

In this investigation, students first produce a standard curve by testing...

This is a problem solving lesson, designed to help you assess how well students are able to:

• Model a situation.
• Make sensible, realistic assumptions and estimates.
• Use assumptions and estimates to create a chain of reasoning, in order to solve a practical problem.

This...

This resource begins with estimating by rounding to significant figures, then deals with estimations and predictions in real life scenarios. Fermi estimation is then introduced. The question ‘Is climate change happening?’ is also posed.

This resource focusses on understanding density and, through a series of practical tests, working out which materials are low and high density. In this activity learners will learn about the density of materials through testing. Learners will have an opportunity to weigh and work out the volume of an object. They...

This lesson develops the concepts of:

• Finding perimeters, areas, and volumes using formulas.
• Finding relationships between perimeters, areas, and volumes of shapes after scaling.

There are three initial questions to consider that deal with:

• The perimeter of a circle...

This lesson develops the concepts of length and area. Particular attention is given to proving why two areas are or are not equal.

The lesson begins with three questions regarding area that students must classify as ‘sometimes, always, or never true’. An example is ‘if you join the midpoints of the opposite...

This resource develops the concept of substitution of integers, fractions, decimals, and directed numbers into inequality statements in order to test their validity. Students also represent inequalities algebraically and in words.

An initial question that students work on is representing the statement

This is a concept development lesson that is designed to assess how well students understand the concepts of:

• Equally likely events
• Randomness
• Sample size

The central theme of the lesson is to address common misconceptions relating to probability. The main activity is to...

This lesson develops concepts relating to radicals. In particular, students will enhance their understanding of:

• Use the properties of exponents, including rational exponents and manipulate algebraic statements involving radicals.
• Discriminate between equations and identities.
  In this...

This lesson develops the concept of reasoning about the properties of rational and irrational numbers. In particular, students will enhance their understanding of:

• Finding irrational and rational numbers to exemplify general statements.
• Reasoning with properties of rational and irrational...

This lesson develops the concept of reasoning about the properties of rational and irrational numbers. In particular, students will enhance their understanding of:

• Finding irrational and rational numbers to exemplify general statements.
• Reasoning with properties of rational and irrational...

This resource requires problem solving using skills in forming and factorising expressions.

Students investigate the sum of four consecutive numbers. Initially this is done using numerical examples. There are a series of statements for students to classify as ‘sometimes true’, ‘always true’, or ‘never true...