## Digital Learning Objects

## Algebra

## Filling Glasses

**Filling Glasses** presents graphs representing liquid filling glasses of different shapes.

Filling glasses: find the right glass

Filling glasses: find the right graph

Filling glasses: create the right glass

Filling glasses: create the right graph

Filling glasses: graphing and comparing

## Visual Linear Algebra

**Visual Linear Algebra** presents a visual model to support students in solving linear algebra equations.

Solving linear algebra equations (variable on one side, positive values only)

Solving linear algebra equations (variable on both sides, positive values only)

Solving linear algebra equations (variable on one side, positive and negative values)

Solving linear algebra equations (variable on both sides, positive and negative values)

## Geometry

## Contours

**Contours** explores how contours are used to represent a 3D 'landscape'.

Contours: about contours

Contours: mystery shapes

Contours: loony landscapes

Contours

## Measuring

**Measuring** explores similar shapes and objects and scaling using ratios.

Measuring: similar shapes

Measuring: scaling up

Measuring: scaling down

Measuring: similar solids

Measuring: scaling up solids

Measuring: scaling down solids

Measuring: scaling surface area

Measuring: volumes

## Viewfinder

**Viewfinder** requires users to arrange a 3D scene so that a 'photo' from a certain angle replicates a given 2D picture.

Viewfinder: up front

Viewfinder: flip side

Viewfinder: backwards glance

Viewfinder: all angles

Viewfinder

## Measurement

## Journey Planner

**Journey Planner** requires users to use timetables to find the best way to travel between points on a map.

Journey planner: quickest route 1

Journey planner: quickest route 2

Journey planner: quickest route 3

Journey planner: quickest route 4

## Number

## Arrays

**Arrays** explores the array model for multiplication and division.

Arrays: factor families

Arrays: word problems with products from 10 to 30

Arrays: word problems with products from 30 to 50

Arrays: word problems with products from 35 to 64

Arrays: the tool

## Design Briefs

**Design Briefs** explores fractions and decimals in the context of proportions of areas.

Design a school

Design your own school

Playground percentages

Design a neighbourhood

Design a city

Design a farm

Neighbourhood fractions

## Drive

**Drive** helps users solve proportional problems with distance and time.

Drive: easy problems

## Integer Cruncher

**Integer Cruncher** introduces the addition and subtraction of positive and negative integers.

Integer cruncher: addition

Integer cruncher: subtraction

Integer cruncher: addition and subtraction

## Loans and Savings

**Loans and Savings** helps users find the nett balance of a loan account and a savings account.

Loans and Savings

## Mix Up

**Mix Up** helps users find averages of percentages.

Mix Up: equal sized

Mix Up: different sized

## The Percentage Bar

**The Percentage Bar** helps users find percentages of numbers.

The Percentage Bar

## Scale Matters

**Scale Matters** helps users explore numberlines with a variety of scales.

Scale matters: negatives

Scale matters: range of numbers

## School Canteen

**School Canteen** provides a context for estimation and multiplication with decimals.

School canteen: restock: level 1

School canteen: best buy: level 1

School canteen: two traders: level 1

School canteen: estimate and check: level 1

School canteen: restock : level 2

School canteen: best buy: level 2

School canteen: two traders: level 2

School canteen: estimate and check: level 2

## Squirt

**Squirt** helps users explore and express proportional relationships.

Squirt: three containers: level 1

Squirt: three containers: level 2

Squirt: three containers

Squirt: three containers: complex proportional relationships

## The Divider

**The Divider** helps users solve division problems by partitioning.

The divider: without remainders

The divider: whole number remainders

The divider: solve your own problem

The divider: with or without remainders

## The Fraction Bar

**The Fraction Bar** helps users find fractions of numbers.

The Fraction Bar

## The Fractions of Fractions Tool

**The Fractions of Fractions Tool** helps users find fractions of fractions using an array model.

The Fractions of Fractions Tool

## The Multiplier

**The Multiplier** helps users solve multiplication problems by partitioning and combining.

The multiplier: make your own hard multiplications

The multiplier: generate hard multiplications

The multiplier

## Modeling numbers: decimals

**Modeling Numbers **helps users to explore numbers using a variety of representations.

Modeling Numbers: decimals

## Statistics

## Data Handler

**Data Handler** requires students to plot data on dot plots then group the data according to a range of predefined rules.

Data Handler: T-shirt order

Data Handler: bus timetable

Data Handler: sock order

Data Handler

## Dice Duels

**Dice Duels** comprises a range of dice-based tutorials, activities and games that enable students to explore even and uneven distribution and bias.

Dice duels

Dice duels: load one dice

Dice duels: load a pair of dice

Dice duels: find the bias

Dice duels: tool

## Healthy Life Survey

**Healthy Life Survey** involves students in the survey process, from selecting a topic through to writing a report on their findings.

Healthy life survey: bringing lunch to school

Healthy life survey: staying active

Healthy life survey: lunchtime activities

Healthy life survey

## Home Internet Survey

**Home Internet Survey** involves students in the survey process, from selecting a topic through to writing a report on their findings.

Home internet survey: who?

Home internet survey: what?

Home internet survey: where?

Home internet survey

## Matchbox Machine

**Matchbox Machine** is designed to help students understand how to construct and interpret boxplots.

Matchbox machine: take a sample

Matchbox machine: plot the variation

Matchbox machine

## Media Report

**Media Report** encourages students to evaluate the ways in which data has been handled and represented in media reports.

Media report: junk food

Media report: music

Media report: cost of petrol

Media report 1

Media report: future plans

Media report: starting salaries

Media report: water usage

Media report 2

## Rice Crisp Machine

**Rice Crisp Machine** is designed to help students understand how to construct and interpret boxplots.

Rice crisp machine: take a sample

Rice crisp machine: plot the variation

Rice crisp machine

## Skateboard Survey

**Skateboard Survey** involves students in the process of conducting a survey and making a proposal.

Skateboard survey