Te Kete Ipurangi
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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
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: 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 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