Directory for

Category B 2008

 Investigations 2

Category A: Investigations 1 contains another 20 Investigations.

Information about other Categories for 2008 is available at this link: 2008 Subscriptions Information

OTRNet have published a hardcopy of the investigations in Category A of this service. This "blackline masters" book is now available for purchase. The standard price of this book is $45 but for subscribers to Category A a reduced price of $10 applies to enable users to get a hardcopy of the investigations they are using.

A hardcopy version of the investigations in Category B of this service is also being published soon. This "blackline masters" book will be available for purchase in 2008. The standard price of this book will be $45 but for subscribers to Category B a reduced price of $10 will apply to enable users to get a hardcopy of the investigations they are using.

Investigations 1 Investigations 2

The investigations below can be downloaded from the links in the first column. If you are unsure how to download go to  Information On Downloading Files   first.

Copyright Warning: All files on this site are copyright of OTRNet. Individual subscribers have limited rights to download these files and make sufficient copies for use in their classes only. Mathematics staff at schools that subscribe may make sufficient copies for use in their mathematics classrooms at that school only. No further copying in any form is permitted.

Link Investigation Name Approx. Age Group Content Strand (** see note) Description

catb01

  Balancing Columns 13   Chance & Data   Visual representation of the mean

catb02

  Luggage Limits 13   Measurement   Dimensions and volume of rectangular prisms

catb03

  Cube Shapes 13   Space   Drawing and Constructing in 3D

catb04

  Designing Cartons 14   Measurement   Optimising surface area for a fixed volume

catb05

  Sums 14   Chance & Data   Finding a quadratic function to fit data

catb06

  The Last Digit 14   Number   Finding modulo patterns in powers

catb07

  Dotty Rectangles 15   Measurement   Areas involving pythagorean theorem

catb08

   Ill Conditioning 15   Algebra   Ill conditioned linear equations graphically

catb09

  Grid Lock 15   Number   Fitting quadratic functions to data

catb10

  Molecular Structures 15   Space   Representing molecules in diagrams

catb11

  Lines and Regions 15   Algebra   Fitting quadratic functions to data

catb12

  Bearing Changes 15   Measurement   Generalising right triangle trigonometry.  This file is a free sample - just click on the link to access the file.

catb13

  Vehicle Separation 15   Measurement   Generalising trig. in non right triangles

catb14

  Shading Squares 16,17   Chance & Data   Generalisations based on combinations

catb15

  Growth and Decay 16,17   Algebra   Modelling exponential data

catb16

  Binomial Theorem 16,17   Algebra   Binomial expansions and combinations

catb17

  Graphs of Y Squared 16,17   Algebra   Generalising behaviour of complex functions
 catb18   Sets 16,17   Algebra   Properties of sets, Union and Intersection
 catb19   Projectile Paths 16,17   Space   Mapping paths using component vectors
 catb20   Random Variable Statistics 16,17   Chance & Data   Mean and standard deviation of continuous random variables

**Note: The dominant mathematical strand in all investigations is Working Mathematically.

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Data Collection & Analysis 1