Adding

(Pattern builder, skill check and pair game) | Practise adding whole numbers (both positive and negative), decimals and fractions. Free to members
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Subtracting

(Pattern builder, skill check and pair game) | Practise subtracting whole numbers (both positive and negative), decimals and fractions.
Free to members
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Number Stories

(Pattern builder, skill check and pair game) | Tools for exploring the 'story' of any number. The number facts can be created either using 'sums', or with a number triangle. Free to members
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Adding Using a Number Line

(Skill check and pair game) | The empty number line is a valuable tool to help children understand the process of addition. The starting number is placed at the left hand end of the line, the ending number at the right hand end, and the “action number” or “jumping number” goes on an arrow showing the jump up the line. Free to members
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Subtracting Using a Number Line

(Skill check and pair game) | The empty number line is a valuable tool to help children understand the process of subtraction. The starting number is placed at the right hand end of the line, the ending number at the left hand end, and the “action number” or “jumping number” goes on an arrow showing the jump down the line. Free to members
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Learn Your Tables*
 | The Counting Caterpillar and other Games: A series of four games that can be used by a whole class or by children working independently to learn the their multiplication tables. GBP £3.95
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How many each and altogether?*

(Full length investigation) | A problem solving dialogue for teacher and lower or middle Primary pupils which helps pupils get to grips with problems that have words in them and explore in depth the concepts of multiplication and division.
GBP £0.40
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How many fingers?*

(Full length investigation) | A problem solving dialogue for teacher and lower or middle primary pupils exploring counting in 10s and 20s over 100.
GBP £0.60
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Make it fair*

(Full length investigation) | A dialogue lesson for a whole class or group to explore concepts of odd and even, grouping and sharing.
Free to members
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The Counting Caterpillar*

(Printable game) | One of a series of games and interactive activities for learning the multiplication tables. This is the first game in the set and helps children memorise the 'stations' of each table. Best introduced initially as a whole-class activity. Once pupils have mastered the rules of the game they can then work individually at their own level. For use in class and as a homework activity.
GBP £1.20
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The Counting Stick*

(Printable game) | A series of games that build on the skills learned through playing the counting caterpillar, developing pupils' awareness of where the stations of each table sit in relation to each other. The game called 'Night Time' is also excellent for learning to estimate. Ideal for whole class work. Once they have mastered them, pupils can also play the games with each other, working in pairs.
GBP £0.50
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Thigh, Clap, Snap, Snap*

(Printable game) | A rap which helps with committing to memory the tables facts (2x1=2, 2x2=4, 2x3=6 etc) once the stations (2, 4, 6 etc) have been learned. Can be used for each multiplication table in turn. A rousing whole-class activity which involves everyone.
GBP £0.30
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Tap, Say, Turn*

(Printable game) | The final step in learning the multiplication tables. This simple card game helps pupils to memorise the tables facts so that they can recall them at will in any order. Tackles the tables one at a time. Best introduced initially as a whole-class activity. Once pupils have mastered the rules of the game they can then work individually at their own level. For use in class and as a homework activity.
GBP £1.20
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Inverses - Addition and Subtraction

(Skill check and pair game) | Explore the link between adding and subtracting whole numbers (both positive and negative), decimals and fractions.
Free to members
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Addition Triangles

(Skill check and pair game) | Addition triangles are extremely useful for exploring the link between addition and subtraction. The three numbers forming a calculation are arranged in a triangle with the number at the top totalling the other two. This resource can be used to consolidate adding and subtracting whole numbers, decimals and fractions. Free to members
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Multiplying

(Pattern builder, skill check and pair game) | Practise multiplying whole numbers (both positive and negative), decimals and fractions. Free to members
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Dividing

(Pattern builder, skill check and pair game) | Practise dividing whole numbers (both positive and negative), decimals and fractions. My year 4s loved it. In particular Jamie. He beamed with joy when he was correct! We even had whoops of joy! Year 4 teacher, Abbey Wood Free to members
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Multiplication Triangles

(Skill check and pair game) | Multiplication triangles are extremely useful for exploring the link between multiplication and division. The three numbers forming a calculation are arranged in a triangle with the number at the top being the product of the other two. This resource can be used to consolidate multiplying and dividing whole numbers, decimals and fractions. Free to members
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Factors

(Pattern builder, skill check and pair game) | Children often confuse the words ‘factor’ and ‘multiple’. A factor is a number that divides into another number. This pattern builder allows pupils to explore possible factors of a number and look at the relationships between them. Skill check and pair game options are also available for pupils to challenge themselves or each other. (See also the full length investigation “Multiplication Rectangles and Factor Rainbows.”) Free to members
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Inverses - Multiplication and Division

(Skill check and pair game) | Explore the link between multiplying and dividing whole numbers (both positive and negative), decimals and fractions. Free to members
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Equivalent Fractions

(Pattern builder, skill check and pair game) | A pattern builder which can be used for investigating equivalent fractions. Skill check and pair game options also available for consolidating pupils’ skills. Free to members
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How do you find a fraction of something?

(Full length investigation) | Leads children step by step into discovering first how to find ½, ¼ and ¾ of number. Then moves on to finding first unit fractions and then other fractions of a variety of numbers of your or your pupils' choice. Free to members
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Numbers between numbers*

(Full length investigation) | An investigation for Primary pupils into decimals and fractions and where they sit on the number line.
GBP £0.60
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Multiplication Rectangles and Factor Rainbows

(Full length investigation) | A broad-ranging investigation into the process of multiplication and the concept of factors, through arranging counters or square tiles in rectangles. Explores the idea of square numbers and looks at the ‘specialness’ of the numbers used for measuring time and angle – 12, 24, 60 and 360. Builds on the investigations ‘Patterns in Multiples’ and ‘Multiplication Square’. Free to members
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Chopping up a Metre Stick*

(Full length investigation) | A wide ranging investigation into division, fractions, decimals and remainders.
GBP £1.90
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How do you add and subtract with negative numbers?

(Full length investigation) | An in-depth investigation for upper primary or lower secondary pupils into how addition and subtraction works with negative numbers. Explores the idea of positive and negative numbers as jumps up and down the number line. Free to members
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Fractions, Decimals and Percentages

(Pattern builder, skill check and pair game) | A pattern builder which can be used for exploring equivalences between fractions, mixed numbers, decimals and percentages. Skill check and pair game options also available for consolidating pupils’ skills. Free to members
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Fractions of

(Pattern builder, skill check and pair game) | A pattern builder which can be used for free investigation of the process of finding fractions of things. Skill check and pair game options are also available for consolidating pupils’ skills once they have mastered the concepts. Would provide a good follow-up or open-ended extension to the structured investigation, “How do you find a fraction of something?” Free to members
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Time Equivalences

(Pattern builder, skill check and pair game) | Tools to allow pupils to practise converting between days, hours, minutes and seconds, creating examples of their choice to suit their own level. Free to members
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Time Intervals - 24 hour clock

(Skill check and pair game) | A time line tool for practising working out time intervals using the 24 hour clock. Allows pupils to enter their own two choices of starting time, finishing time or journey time and then work out the missing value. Free to members
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How do you multiply and divide negative numbers?

(Full length investigation) | An in-depth investigation for upper primary or lower secondary pupils into how multiplication and division works with negative numbers. Explores patterns in number facts to deduce well known relationships and explain why they work. Develops the idea of multiplication by –1 as a reflection in a mirror. Free to members
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How do you find a percentage of something?

(Full length investigation) | An investigation into different ways of finding a percentage of a number. Begins by exploring how to find simple percentages, and then moves on to finding general percentages. Free to members
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What patterns are there in the angles of polygons?

(Full length investigation) | An extended investigation exploring the patterns in the angles of polygons leading to a relationship between the angles and the number of sides. Free to members
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How much snow would fill the classroom?*

(Full length investigation) | A whole class investigation for an Upper primary class. Covers team working, estimating distances, volume of cuboids, metric volume conversion - cm3 - litre - m3, practical measuring with metre sticks, minimising sources of error, averaging using the median, drawing diagrams, rounding numbers and significant figures.
GBP £1.00
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Adding Negative Numbers

(Pattern builder, skill check and pair game) | Tools to give pupils free rein in exploring how to add negative numbers. Can be used as a follow-up activity to the full length investigation “How do you Add and Subtract Negative Numbers?” or simply for revision by those already secure with the concepts. In addition to whole numbers, these resources include options to investigate the addition of negative fractions and decimals. Free to members
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Subtracting Negative Numbers

(Pattern builder, skill check and pair game) | Tools to give pupils free rein in exploring how to subtract negative numbers. Can be used as a follow-up activity to the full length investigation “How do you Add and Subtract Negative Numbers?” or simply for revision by those already secure with the concepts. In addition to whole numbers, these resources include options to investigate the subtraction of negative fractions and decimals. Free to members
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Multiplying Negative Numbers

(Pattern builder, skill check and pair game) | Tools to give pupils free rein in exploring how to multiply negative numbers. Can be used as a follow-up activity to the full length investigation “How do you Multiply and Divide Negative Numbers?” or simply for revision by those already secure with the concepts. In addition to whole numbers, these resources include options to investigate the multiplication of negative fractions and decimals. Free to members
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Dividing Negative Numbers

(Pattern builder, skill check and pair game) | Tools to give pupils free rein in exploring how to divide negative numbers. Can be used as a follow-up activity to the full length investigation “How do you Multiply and Divide Negative Numbers?” or simply for revision by those already secure with the concepts. In addition to whole numbers, these resources include options to investigate the division of negative fractions and decimals. Free to members
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Improper Fractions and Mixed Numbers

(Pattern builder, skill check and pair game) | A pattern builder which can be used for exploring equivalences between improper fractions and mixed numbers. Equivalent decimals and percentages can also be explored. Skill check and pair game options are available for consolidating pupils’ skills once they have mastered the concepts. Free to members
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Adding Fractions

(Pattern builder, skill check and pair game) | Use the pattern builder to explore how the addition of fractions works and the skillchecker or pair game to consolidate. Allows pupils to select a combination of proper, improper fractions or mixed numbers to suit their own level of challenge. Free to members
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Subtracting Fractions

(Pattern builder, skill check and pair game) | Use the pattern builder to explore how the subtraction of fractions works and the skillchecker or pair game to consolidate. Allows pupils to select a combination of proper, improper fractions or mixed numbers to suit their own level of challenge. Free to members
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Multiplying Fractions

(Pattern builder, skill check and pair game) | Use the pattern builder to explore how the multiplication of fractions works and the skillchecker or pair game to consolidate. Allows pupils to select a combination of proper, improper fractions or mixed numbers to suit their own level of challenge. Free to members
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Dividing Fractions

(Pattern builder, skill check and pair game) | Use the pattern builder to explore how the division of fractions works and the skillchecker or pair game to consolidate. Allows pupils to select a combination of proper, improper fractions or mixed numbers to suit their own level of challenge. Free to members
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Percentages of

(Pattern builder, skill check and pair game) | A pattern builder which can be used for free investigation of the process of finding percentages of things. Skill check and pair game options are also available for consolidating pupils’ skills once they have mastered the concepts. Would provide a good follow-up or open-ended extension to the structured investigation, “How do you find a percentage of something?” Free to members
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Powers

(Pattern builder, skill check and pair game) | Use the pattern builder for free investigation of the process of finding squares, cubes and other powers of things. The skill check and pair game, which have inverse arrows to show the link with finding roots, can be used to consolidate the concepts. Free to members
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Roots

(Pattern builder, skill check and pair game) | Use the pattern builder for free investigation of the process of finding square roots, cube roots and other roots of things. The skill check and pair game, which have inverse arrows to show the link with finding powers, can be used to consolidate the concepts. Free to members
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Length Equivalences

(Pattern builder, skill check and pair game) | Investigate the relationships between m, cm, mm and km with these powerful conversion checkers. Allows pupils to select their own units and create examples with either whole number, decimal or fractional measurements to suit their level. Free to members
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Weight Equivalences

(Pattern builder, skill check and pair game) | Investigate the relationships between g, mg, kg and tonnes with these powerful conversion checkers. Allows pupils to select their own units and create examples with either whole number, decimal or fractional measurements to suit their level. Free to members
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Capacity Equivalences

(Pattern builder, skill check and pair game) | Investigate the relationships between l, ml, cubic centimetres and cubic metres with these powerful conversion checkers. Allows pupils to select their own units and create examples with either whole number, decimal or fractional measurements to suit their level. Free to members
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Complementary and Supplementary Angles

(Pattern builder, skill check and pair game) | Tools that allow pupils to hone their addition and subtraction skills in finding pairs of numbers that add to either 90 or 180 degrees. Free to members
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| *Available for purchase as individual items |