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Listed under:  Mathematics  >  Algebra  >  Arrays
Teacher resource

Primary mathematics: open-ended tasks

These seven learning activities, which focus on 'open-ended tasks' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use investigations in order ...

Teacher resource

Mental computation: basic facts - multiplication and division

This is a teacher resource that is part of a wider series; it develops a structured strategies-based approach to mental computation of single-digit multiplication and related division facts at lower primary level. It provides 22 engaging classroom activities that will stimulate students to use appropriate mental-computation ...

Teacher resource

Multiplication and division

Use these resources to develop your students' understanding and use of efficient strategies for multiplication and solving problems in authentic situations. Develop strategies for a sound basis of skip counting and other examples of repeated addition. Investigate division by sharing quantities (partition) then by repeated ...

Interactive resource

The multiplier: make your own hard multiplications

Solve multiplications such as 84x93. Use a partitioning tool to help solve your own multiplications. Learn strategies to do complex arithmetic in your head. Split a sum into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in a series of five objects.

Interactive resource

The multiplier: generate easy multiplications

Solve multiplications such as 9x88. Use a partitioning tool to help solve randomly generated multiplications. Learn strategies to do complex arithmetic in your head. Split a multiplication into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in ...

Interactive resource

The multiplier: generate hard multiplications

Solve multiplications such as 67x88. Use a partitioning tool to help solve randomly generated multiplications. Learn strategies to do complex arithmetic in your head. Split a multiplication into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in ...

Interactive resource

The multiplier: go figure

This tutorial is suitable for use with a screen reader. It explains strategies for solving complex multiplications in your head such as 22x38. Work through sample questions and instructions explaining how to use partitioning techniques. Solve multiplications by breaking them up into parts that are easy to work with, use ...

Assessment resource

Pobble arrays: find factors: assessment

Test your understanding of arrays by arranging pobbles into equal columns and rows. Look at the given number of pobbles and enter the number of gates and rows. For example, decide how many equal rows of pobbles are needed to fit 24 of them through four gates. The object starts with a practice task, which provides text and ...

Assessment resource

Pobble arrays: make multiples: assessment

Test your understanding of arrays by arranging pobbles into equal columns and rows. For example, start with 19 pobbles. Decide whether the number can be divided into an equal number of rows. If not, add or subtract pobbles to make a number that will work. The object starts with a practice task, which provides text and animation ...

Image

Packing jelly beans - mathematics activities

The photograph shows a box containing jelly beans in an array. Looking closely, we see each compartment in this box contains six jelly beans of the same colour. They are arranged in two layers of three beans. There is a different flavour in each compartment. Teachers are encouraged to scan all the ideas suggested here as ...

Collection

Exploring division and multiplication

This collection of 17 digital curriculum resources contains activities to consolidate and extend students' problem-solving skills in the areas of multiplication and division. The first category, arrays, allows students to visualise problems while consolidating the idea that multiplication involves repeated groups of objects. ...

Teacher resource

Using 'Multiplying and dividing with arrays' - Teacher idea

This Teacher idea includes a teacher’s reflection on teaching R11453 'Multiplying and dividing with arrays - unit of work' with her mixed ability class. The unit explores the concepts of multiplication and division, integrating digital and non-digital resources, and offers students a range of visual, written and mental ...

Teacher resource

Multiplying and dividing with arrays - unit of work

This unit explores the concepts of multiplication and division and offers students strategies to perform these operations.

Teacher resource

Introducing arrays - unit of work

This unit explores how arrays can be used to perform the operations of multiplication and division.

Tablet friendly (Interactive resource)

Finding the area of compound shapes

Find the area of compound shapes based on rectangles on a grid. Explore how the formula works for finding a rectangle's area. First, estimate the area of a compound shape based on rectangles on a grid. Second, work out the correct formula for finding area by placing rows and columns of squares inside two rectangles. Then, ...

Interactive resource

Finding the area of rectangles

Find the area of rectangles on a grid. Explore how the formula works. First, estimate the area of a rectangle on a grid. Second, work out the correct formula for finding area by placing rows and columns of squares inside the rectangle. Then, compare the actual area of the original shape with your first estimate. Practise ...

Interactive resource

The multiplier: make your own easy multiplications

Solve multiplications such as 76x9. Use a partitioning tool to help solve your own multiplications. Learn strategies to do complex arithmetic in your head. Split a multiplication into parts that are easy to work with, use simple times tables, then solve the original calculation. This learning object is one in a series of ...

Interactive resource

The number partner: go figure

This tutorial is suitable for use with a screen reader. It explains strategies for breaking up numbers into pairs of smaller numbers, eg 15 = 11 + 4. Work through examples of whole number pairs and sample questions. Apply these principles to solve additions or subtractions.

Tablet friendly (Interactive resource)

The array

Use an array-building tool to help solve multiplications. Explore strategies to break up multiplications. Create and solve easy multiplications such as 9x3. Examine relationships between rows, columns and areas in arrays.

Interactive resource

The array: go figure

This tutorial is suitable for use with a screen reader. It explains strategies for solving simple multiplications in your head such as 6x4. Work through sample questions and instructions explaining how to break up numbers into their factors. Solve multiplications by using arrays to break them up into rows and columns, then ...