Results for "earth and atmosphere" (1228)

Interpreting multiplication and division

This lesson develops the concept of interpreting multiplication and division. This includes working with calculations that involve non-integers. An outcome of the lesson is that students will be better able to select the correct operation to perform when solving word problems.An initial activity has five questions set...
Publication date:
2010 to date

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Finding factors and multiples

This lesson develops the concept of ‘Greatest Common Factor’ (GCF) and ‘Least Common Multiple’ (LCM). The central theme is to separate out the two concepts.There is an introductory ‘guess my numbers’ activity. The GCF and LCM of a pair of numbers is given and students must work out what the numbers are, saying if the...
Publication date:
2010 to date

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Representing and combining transformations

This lesson develops the concept of combining transformations. In particular students will:Recognise and visualise transformations of 2D shapesTranslate, reflect and rotate shapes, and combine these transformationsDiscuss some common misconceptions about transformationsThe initial activity looks at transformations of...
Publication date:
2010 to date

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Describing and defining triangles

This lesson develops the concept of constructing triangles with given conditions. In particular students will:Recall and apply triangle propertiesDetermine whether a set of given conditions for the measures of angle and/or sides of a triangle describe a unique triangle, more than one possible triangle or do not...
Publication date:
2010 to date

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Describing and defining quadrilaterals

This lesson develops the concept of naming and classifying quadrilaterals according to their properties. Students identify the minimal information required to define a quadrilateral. They sketch quadrilaterals with given conditions.During the first part of the lesson students choose from the words ‘all’, ‘some’ or ‘no...
Publication date:
2010 to date

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Linear and exponential models

This short task asks students to identify linear, exponential growth, and exponential decay from tables of values. Students then sketch the graphs and identify the equation representing the linear relationship.This is a short task from the Mathematics Assessment Resource Service, a collaboration between UC Berkeley...
Publication date:
2010 to date

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Aerodynamics and Boomerangs

This activity, from the Institution of Engineering and Technology (IET), looks at how the boomerang works from design and scientific principles. Students explore how aerodynamic forces affect the flight of objects, relate the design features of the boomerang to its path and motion and they then learn to apply...
Publication date:
2010 to date

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Modelling: hot and cold

This problem solving resource is intended to help students compare two linear functions as approximations to the relationship between Celsius and Fahrenheit temperature and consider under what circumstances each of the approximations may be reasonable.The two methods given are ‘To convert from Celsius to...
Publication date:
2010 to date

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Sorting equations and identities

This resource looks at the concept of recognising the differences between equations and identities. Students substitute numbers into algebraic statements in order to test their validity. Common errors are highlighted that can occur when manipulating expressions.Students work on an exercise that involves grouping...
Publication date:
2010 to date

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Straight line and circle

In this resource students are challenged to determine the equation of the line that goes through a given coordinate point and is also tangential to a circle centred on the origin. The final step is to determine the radius of the circle.The solution involves determining the gradient of the tangent and also working out...
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2010 to date

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