### Bryony’s Triangle – origami fractions activity

This rich task was shared by Rochelle Telfer.

Watch the video about making an origami flower and then decide what fraction of the original square of paper is the shaded triangle.

Activity can be found on NRich: https://nrich.maths.org/7392

### Arithmefacts game

This Arithmefacts game was shared by Dianne Ogle.

It is a game for 2 to 4 players where students use operations to make equations which equal each other. Each player practices forming equations when other players put their cards down and they may have to explain their working if they are challenged.

This resources has instructions and game cards included.

Suitable for curriculum level 2 – 5.

### Mathematically Interesting starter questions

Noel Johnston, Kaiarahi for Otago, Southland has put together this word document of a range of starter problems for teachers to use to get their kids thinking. There are some lovely problems here, some need some unpacking and some can be extended, feel free to use them.

### Rectangle Ratios

A hands on activity for developing an understanding or proportionality and similar shapes.

Instructions and resources attached.

Aimed at CL5

Shared by Sandra Cathcart

### Group activity. E: Fraction of a number – word problems and one finding what’s left

There are 5 sets of cards in this sequence starting from A through to E.

Within each set, there are 4 cards. The sum of the answers to all 4 cards is recorded at the bottom of the page. If you take out the card with the dot, the sum of the other 3 cards will give a different answer which is also recorded at the bottom of the page.

You can get students into groups of 3 or 4 and they each solve one question each. Only when all group members have worked out their answer do they know if they are correct.

They can start at Set A and progress through the sequence.

A: Fraction of a number – where 1 is the numerator

B: Fraction of a number – where the numerator is not 1

C: Fraction of a number – word problems

D: Fraction of a number – word problems and one adding on

E: Fraction of a number – word problems and one finding what’s left

### Group activity. D: Fraction of a number – word problems and one adding on

There are 5 sets of cards in this sequence starting from A through to E.

Within each set, there are 4 cards. The sum of the answers to all 4 cards is recorded at the bottom of the page. If you take out the card with the dot, the sum of the other 3 cards will give a different answer which is also recorded at the bottom of the page.

You can get students into groups of 3 or 4 and they each solve one question each. Only when all group members have worked out their answer do they know if they are correct.

They can start at Set A and progress through the sequence.

A: Fraction of a number – where 1 is the numerator

B: Fraction of a number – where the numerator is not 1

C: Fraction of a number – word problems

D: Fraction of a number – word problems and one adding on

E: Fraction of a number – word problems and one finding what’s left

### Group activity. C: Fraction of a number – word problems

There are 5 sets of cards in this sequence starting from A through to E.

Within each set, there are 4 cards. The sum of the answers to all 4 cards is recorded at the bottom of the page. If you take out the card with the dot, the sum of the other 3 cards will give a different answer which is also recorded at the bottom of the page.

You can get students into groups of 3 or 4 and they each solve one question each. Only when all group members have worked out their answer do they know if they are correct.

They can start at Set A and progress through the sequence.

A: Fraction of a number – where 1 is the numerator

B: Fraction of a number – where the numerator is not 1

C: Fraction of a number – word problems

D: Fraction of a number – word problems and one adding on

E: Fraction of a number – word problems and one finding what’s left

### Group activity. B: Fraction of a number – where the numerator is not 1

There are 5 sets of cards in this sequence starting from A through to E.

Within each set, there are 4 cards. The sum of the answers to all 4 cards is recorded at the bottom of the page. If you take out the card with the dot, the sum of the other 3 cards will give a different answer which is also recorded at the bottom of the page.

You can get students into groups of 3 or 4 and they each solve one question each. Only when all group members have worked out their answer do they know if they are correct.

They can start at Set A and progress through the sequence.

A: Fraction of a number – where 1 is the numerator

B: Fraction of a number – where the numerator is not 1

C: Fraction of a number – word problems

D: Fraction of a number – word problems and one adding on

E: Fraction of a number – word problems and one finding what’s left

### Group activity. A: Fraction of a number – where 1 is the numerator

There are 5 sets of cards in this sequence starting from A through to E.

Within each set, there are 4 cards. The sum of the answers to all 4 cards is recorded at the bottom of the page. If you take out the card with the dot, the sum of the other 3 cards will give a different answer which is also recorded at the bottom of the page.

You can get students into groups of 3 or 4 and they each solve one question each. Only when all group members have worked out their answer do they know if they are correct.

They can start at Set A and progress through the sequence.

A: Fraction of a number – where 1 is the numerator

B: Fraction of a number – where the numerator is not 1

C: Fraction of a number – word problems

D: Fraction of a number – word problems and one adding on

E: Fraction of a number – word problems and one finding what’s left

### Double number lines – increase/decrease by percentage 2

Provide by Sandra Cathcart, from the Numeracy Project resources