## Digital Learning Objects

## Algebra

## Mobile Phone Plans

**Mobile Phone Plans** provides a context for the use of line graphs.

Mobile phone plans: find the best deal 1

Mobile phone plans: find the best deal 2

Mobile phone plans: find the best deal 3

Mobile phone plans: peak and off-peak

Mobile phone plans: one company

Mobile phone plans: several companies

## Triathlon

**Triathlon** helps users explore features of a distance-time graph.

Triathlon: distance-time graphs (Requires Digistore login)

Triathlon: triathlete (Requires Digistore login)

Triathlon: elite triathletes (Requires Digistore login)

Triathlon: the course (Requires Digistore login)

## NLVM: Algebra manipulatives

**NLVM: Algebra manipulatives**

Algebra balance scales: negatives

Grapher

## Geometry

## Trigonometry

**Trigonometry** develops the concept of trigonometry from simple comparisons to more formal approaches.

Trigonometry: measuring with triangles

Trigonometry: similar triangles

Trigonometry: cosine

Trigonometry: sine

Trigonometry: tan

Trigonometry: using sine

Trigonometry: using cosine

Trigonometry: using tan

Trigonometry: find hypotenuse

Trigonometry: find angles

## NLVM: Space manipulatives

**NLVM: Space manipulatives**

Pentominoes

Tessellations

Pattern blocks

Geoboard

Platonic solids

Polyominoes

Golden rectangle

## Learn Alberta: Exploring Space series

**Learn Alberta: Exploring Space series**.

Exploring diameter and circumference

Exploring relationships of angles

## Learn Alberta: Exploring Measurement series

**Learn Alberta: Exploring Measurement series**.

Exploring triangles

Exploring trigonometry

## Measurement

## Area of Compound Shapes

**Area of Compound Shapes** helps users to find the area of compound shapes by breaking them into rectangles and triangles.

Compound shapes: small shapes

Compound shapes: medium-sized shapes

Compound shapes: large shapes

Compound shapes

## Area of Triangles

**Area of Triangles** helps users to find the area of triangles.

Area of triangles: triangles with a right angle

Area of triangles: height intersects with the base inside the triangle

Area of triangles: height intersects with the base outside the triangle

Area of triangles: triangles without vertical or horizontal sides

Area of triangles

## Learn Alberta: Exploring Measurement series

**Learn Alberta: Exploring Measurement series**.

Exploring the Pythagorean theorem

Exploring area and perimeter

## Number

## Biscuit Factory

**Biscuit Factory** explores ratio relationships in the context of gears.

Biscuit factory: ratios

Biscuit factory: complex ratios

Biscuit factory: directions

Biscuit factory: create a two-gear system

Biscuit factory: create a three-gear system

Biscuit factory: gears and speed

## Drive

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

Drive: hard problems

## Squirt

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

Squirt: three containers: complex proportional relationships

## NLVM: Number manipulatives

**NLVM: Number manipulatives**

Sieve of Eratosthenes

Pascal's triangle

## Learn Alberta: Exploring Number series

**Learn Alberta: Exploring Number series**.

Exploring order of operations

Exploring powers of 10

## Learn Alberta: Exploring Fractions and Percentages series

**Learn Alberta: Exploring Fractions and Percentages series**.

Exploring combined percentages

## Learn Alberta: Exploring Measurement series

**Learn Alberta: Exploring Measurement series**.

Exploring ratios and proportions

Exploring square roots

## Statistics

## 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

Matchbox machine: varying scoop size and speed

Matchbox machine: varying scoop size

Matchbox machine: varying speed

## 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

## NLVM: Chance manipulative

**NLVM: Chance manipulative**

Coin tossing

## NLVM: Data manipulative

**NLVM: Data manipulative**

Scatterplot