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Líon bosca le ciúbanna, sraitheanna ciúbanna, nó sraitheanna ciúbanna. Tugtar méid an bhosca ar líon na gciúbanna aonaid a theastaíonn chun an bosca iomlán a líonadh.

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Use this applet to determine the volume of a box by filling it with cubes, rows of cubes, or layers of cubes. Determine the surface area as well by using the box's net.

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Odd One Out activities are suitable for all age groups. By encouraging all pupils to 'have a go' and 'valuing all contributions', the skills of reasoning, communicating and expressing are developed. Success is based on skills rather than answers. It also allows every pupil to partake in the activity, no matter what their ability.

Examples of questions/prompts to promote classroom discussion:
● Which one do you think is the odd one out?
● Give me a reason.
● Try to give me another reason why that one might be odd.
● Who had a different answer?
● Give me a reason why each one might be the odd one out.

Take a look at this short video from our 'STEM in a Bubble' webinar which explores 'Odd One Out' activities further. A complete recording of this webinar along with the resources referenced is available here.

Below you will find some Odd One Out stories to try with the pupils in your class. For more examples, see http://wodb.ca/

Choose an Odd One odd activity below. These resources are available in Irish and English in the downloadable file. To download the activity, simply click on the picture.

Choose an Odd One odd activity below. These resources are available in Irish and English in the downloadable file. To download the activity, simply click on the picture.

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Official education portal of the Department of Education and Skills in Ireland. Curriculum focused resources and support for primary and post primary teachers.

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Virtual Manipulative: Decimal Demonstrator 

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Virtual Manipulative: Decimal Demonstrator 

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Tomhais- Lamhleabhar an Mhuinteora “Déan Méadar Ciúbach” lch. 235

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Tomhais- Lamhleabhar an Mhuinteora “Déan Méadar Ciúbach” lch. 235

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Fraction walls are a great way to teach about fractions and in particular equivalent fractions. In a fraction wall each row or layer of the wall represents one whole number. The layers are divided into a number of bricks and hence each brick represents a fraction whose denominator is equal to the number of bricks in that layer. Each brick can be turned on or off by clicking it. This wall also allows the display of decimal and percentage values. To the right of the wall are boxes which can be hidden, the value of each box is fraction of the wall that has been turned on.

Selecting different walls

When you launch this interactive teaching program the initial wall is a mixed one showing 3 distinct fraction families. Change the wall by using the mode control. 'Large' displays a wall in which the layers are split 1,2,3 up to 12. The others split the wall along 2s, 3s or 5s. The 5s also includes a lower wall of 100 bricks, this naturally works quite well in explaining percentages since each brick represent 1⁄ 100 or 1%.

Fractions, decimals or percentages

Use the display type control to display decimals (rounded to 2dp), percentages (rounded to 1dp), fractions or none.

The equivalent fraction control

Normally when you click a brick to turn it on or off, only that brick is affected. However if you turn on the equivalent fraction function by clicking the 'Eq' toggle button. Now when a brick is clicked the other layers will turn on bricks if they can match an equivalent fraction. Note, this is not always possible, in fact if you select the primes wall it is never possible to show an equivalent fraction. In this case all the other layers have bricks turned off.

Least Common Multiple

Also known as 'the lowest common multiple' or 'smallest common multiple' is crucial when adding, subtracting or comparing fractions. This button will calculate the LCM based on the rows that have active bricks. Pressing the LCM button will create a new wall that contains the originally selected fraction but also a new layer with the number of divisions equalling the least common multiple of the denominators of the other rows. Sounds complicated, but it really just means that it is always possible to create an equivalent fraction in the LCM row from the other rows.

Other controls

The other controls are

'On' button when clicked will turn on all the bricks

'Off' button when clicked will turn off all the bricks

'Random' button creates a randomized wall in which roughly half the bricks are on. Usually you would hide the totals before pressing this and then the class can work out each fraction in the random wall.

' < ' button will align all the bricks to the left hand side of the wall. This is often pressed after using the randomize function. Fractions can then be compared by considering the length of each row of on bricks.

hide totals click to hide all the totals. The individuals total can then be clicked to show the value.

show totals reveal all the totals.

Advanced Section

To show or hide the advanced section click the advanced toggle button

When the advance controls are on, each layer of the wall has a dedicated slider, move this to change the number the number of bricks in that layer.

Automatic 1 button when clicked create a new wall by dividing the top layer by all its ascending prime factors. So for example if you move the top slider so the top layer has 42 bricks and then click the button. The primefactors of 42 are 2,3 and 7. So the second layer will have 42÷2=21 bricks, the third layer will have 21÷3=7 bricks and the final layer will have 7÷7= 1 brick.

Automatic 2 is similar but creates a layer for every factor of the top layer value.

Add Layer adds a new layer to the bottom of the wall.

total type select control will change the type of total to display. The default is to match what the wall shows, so in this case if the wall is showing fraction the total will be a fraction. But using this control it is now possible for fractions to be shown in the wall but the total to be given as a percentage.

Further fractions

Closely related to this activity is the percentage fraction and decimals grid, which can be used to display a square or circle fraction representation.

Other activities that can be used to teach fractions are the clock activity which uses the clock face to show the fraction of minutes passed in an hour. Launch the activity and select the fractions mode, this mode also show equivalent fractions for example 30⁄ 60 = 1⁄ 2. The number explorer activity can show the fraction resulting from division of a number.

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Interactive Fraction Wall | online fraction | percentage | decimal | visnos

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Online fraction wall, easily display fractions using interactive white board. Simple to explore fraction,decimals and percentages . Step by step view equivalent fractions. Beautiful display which children love.

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Explore different representations for fractions including improper fractions, mixed numbers, decimals, and percentages. Additionally, there are length, area, region, and set models.

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Are you looking for creative ways to teach multiplication and counting? These online number charts provide a fun way to teach number patterns, skip counting, the commutative property, and more. Our virtual number charts are perfect for use in a math center, a group activity, or even for working with the whole class.

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Number Chart Manipulatives " Toy Theater | Learn * Create * Play

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Are you looking for creative ways to teach multiplication and counting? These online number charts provide a fun way to teach number patterns, skip counting, the commutative property, and more. Our virtual number charts are perfect for use in a math center, a group activity, or even for working with the whole class.

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Mostly Postie

Mostly Postie is a mobile-friendly scale reading game.

Learning Objectives:
Y1:To begin to measure mass / weight.
Y2:To choose and use appropriate standard units to estimate and measure length/height in any direction (m/cm); mass (kg/g) temperature (°C); capacity (litres/ml) to the nearest appropriate unit, using rulers, scales, thermometers and measuring vessels.
Y3: To measure, compare, add and subtract: lengths (m/cm/mm); mass (kg/g); volume/capacity (l/ml).

Drag the parcel onto the scales.
Read the scales to find the mass of the object.
Type the mass on the keypad.
Press 'check' - if you're correct the post van will deliver your post.

Make it trickier, you can enter half kg as ½kg or 500g.

Have fun!

HAVING TROUBLE LOADING? Please try this version.

This game is © copyright 2018, J.Barrett, ictgames.com All Rights Reserved.

Made using the and libraries.

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Mostly Postie is a mobile-friendly scale reading game. Learning Objectives: Y1:To begin to measure mass / weight. Y2:To choose and use appropriate standard units to estimate and measure length/height in any direction (m/cm); mass (kg/g) temperature (°C); capacity (litres/ml) to the nearest appropriate unit, using rulers, scales, thermometers and measuring vessels.

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Arrow Cards is a tablet-friendly place value teaching tool.

Learning Objectives:
Y1: To count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given number.
Y1: When given a number, identify 1 more and 1 less
Y2: To recognise the place value of each digit in a two-digit number (10s, 1s).
Y3: To recognise the place value of each digit in a 3-digit number (100s, 10s, 1s)

beads button - changes the concrete example to an abacus, (press again to hide / reveal).
three squares - changes the concrete example to Deinnes cubes, (press again to hide / reveal).
single arrow card - to hide / reveal the arrow cards.
zero button - to zero everything.
stack of arrow cards - to partition your number.

click on any card - to partition that digit.

Why not try counting whilst the arrow cards are hidden.

Have fun!

This game is © copyright 2021, J.Barrett, ictgames.com All Rights Reserved.

Made using the and libraries.

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Arrow Cards is a tablet-friendly place value teaching tool. Learning Objectives: Y1: To count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given number. Y1: When given a number, identify 1 more and 1 less Y2: To recognise the place value of each digit in a two-digit number (10s, 1s).

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Ionadluach, Deachúlacha & Céatadáin- Lámhleabhar an Mhúinteora "Slánú agus Déanaimis Meastachán a Thabhairt"

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Ionadluach, Deachúlacha & Céatadáin- Lámhleabhar an Mhúinteora "Slánú agus Déanaimis Meastachán a Thabhairt"

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Find local businesses, view maps and get driving directions in Google Maps.

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STEM sa Bhaile: Cén chaoi ina bhfuilim i gcomparáid le hOilimpeach?

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STEM sa Bhaile: Cén chaoi ina bhfuilim i gcomparáid le hOilimpeach?

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Tomhais- Lamhleabhar an Mhuinteora “Ciliméadair a thiontú go Méadair” lch. 77

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Tomhais- Lamhleabhar an Mhuinteora “Ciliméadair a thiontú go Méadair” lch. 77

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Ionadluach, Deachúlacha & Céatadáin- Lámhleabhar an Mhúinteora "Conair Dheachúlacha"

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Ionadluach, Deachúlacha & Céatadáin- Lámhleabhar an Mhúinteora "Conair Dheachúlacha"

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Music is for everyone. Play with simple experiments that let anyone, of any age, explore how music works.

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You may also like

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

On a clock the three hands - the second, minute and hour hands - are on the same axis. How often in a 24 hour day will the second hand be parallel to either of the two other hands?

During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?

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md angles polygons and geom proof - stage 3

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Chruth agus Spás- Lámhleabhar an Mhuinteora "Liostaí Airíonna do Cheathairshleasáin"

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Chruth agus Spás- Lámhleabhar an Mhuinteora "Liostaí Airíonna do Cheathairshleasáin"

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Click on the Title to open the problem...Upload pictures or answers to the Padlet to enter the Maths Week competition for PDST Numeracy Manuals and a class set of Active Learning Boards.
5 resources in this Learning Path

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What you need...

To register for a Scoilnet Account you will need to have a Teaching Council number and a roll number for your school in Ireland.

If you already have a Scoilnet Account then you can sign in here.

The benefits...

A Scoilnet account will allow you to upload your resources or weblinks to Scoilnet as well as enabling you to share and add resources to a favourites listing. Users who have a Scoilnet Account will also be able to fully access Scoilnet Maps and Census@School from home.

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Official education portal of the Department of Education and Skills in Ireland. Curriculum focused resources and support for primary and post primary teachers.

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Virtual Manipulative: Area and Perimeter Building

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Virtual Manipulative: Area and Perimeter Building

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Interactive Clock | Analog Clock | Digital | Movable | Teaching Clock | Visnos

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Visnos interactive clock. Simple tool to teach telling the time using a colorful classroom analog clock. Show equivalent digital clock time. Learn about hours, minutes, and seconds step by step. Simply click and drag the movable hands. The clock can also be used to teach about fractions and angles.

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On your marks, get set, go! It's time to see how quickly you can clean up the classroom and line up for recess! Or, perhaps you'd like to challenge students to achieve their personal best time answering a deck of multiplication flash cards. Can they beat 3 minutes?

The online stopwatch is simple, easy, and fun to use. Simply press start and stop to time one student, a small group, or the whole class. Press reset to start the stopwatch over again.

A stopwatch is a useful teacher tool you can use to challenge students and bring an element of fun and excitement to the classroom. A little bit of friendly competition can motivate students to

get their work done or encourage them to clean up more efficiently. Not only that, but the stopwatch can help students develop their sense of time. After using the stopwatch in the classroom, students may be better at estimating how long tasks will take or at determining how much time has passed. Have students use the stopwatch themselves to encourage personal growth. Or, use it in small groups and whole class settings.

We have plenty of other time manipulatives and teacher tools to try. Give them a shot!

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Stopwatch | Free Virtual Manipulatives | Toy Theater

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This online stopwatch is perfect for timing classroom activities, from turns in charades to classroom clean up. Try it, it's free!

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Tomhais- Lamhleabhar an Mhuinteora “Rian Féilire” lch. 274

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Tomhais- Lamhleabhar an Mhuinteora “Rian Féilire” lch. 274

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Tomhais- Lamhleabhar an Mhuinteora “Rann de Laethanta na Míosa” lch. 272

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Tomhais- Lamhleabhar an Mhuinteora “Rann de Laethanta na Míosa” lch. 272

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Students often struggle with the concept of fractions. This interactive fraction strips tool helps students visualize fractions. With these online fraction strips, students can model fractions, solve fraction problems, explore equivalent fractions, and observe the differences between denominators.

To use the interactive fraction strips tool, click and drag the strips onto the canvas. You can drag as many of each fraction as you'd like. To remove the strips, drag them off the canvas. Change the chart to accommodate two whole units by pressing the "Unit Double" button. Add annotations using the pencil tool and erase using the eraser. To clear the canvas, press the trash can button.

A few activities you can do with students while using the online fraction strip tool include:

Have students model a given fraction, mixed or not. For example 1 1/4 or 3/6.

Ask students to model addition, subtraction, multiplication, or division problems using the fraction strips.

Ask students to find equivalent fractions for a certain fraction. For example, how many sixths are equivalent to 1/3?

Ask students to use the pencil tool to divide one of the wholes on the chart into fourths. Then, students can check their work by dragging fourths onto the chart afterward.

Looking for more fraction manipulatives? Try our interactive fraction circles.

Visit classplayground.com for more resources and printables about fraction strips.

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Fraction Strips | Free Virtual Manipulatives | Toy Theater

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Use the interactive fraction strips tool to help students visualize, model, and explore fractions. Students can also solve problems using fraction strips.

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Codáin Lámhleabhar an Mhúinteora lch. 102 - 105 Codáin a Chomhaireamh

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Codáin Lámhleabhar an Mhúinteora lch. 102 - 105 Codáin a Chomhaireamh

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Codáin - 1/2 , 1/4 , 1/8 sreang agus fáiscíní páipéir

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Codáin - 1/2 , 1/4 , 1/8 sreang agus fáiscíní páipéir

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Ionadluach, Deachúlacha & Céatadáin - Lámhleabhar an Mhúinteora

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Ionadluach, Deachúlacha & Céatadáin - Lámhleabhar an Mhúinteora

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For students, decimals are often a challenging concept to grasp. This interactive decimal strips tool helps students model and visualize decimals. When using the online decimal strips tool, students can model, explore, and compare decimals. Additionally, the decimal strips are a useful interactive tool for modeling and solving operations involving decimals.

Using the interactive decimal strips tool is easy. Simply drag the decimal strips on or off the canvas. Modify the chart so that two whole units can be displayed by clicking on the "Unit Double" button. Write on the canvas using the pencil button and click on the eraser symbol to erase. To clear the whole canvas, click on the trash can symbol.

Here are a few suggestions for using the interactive decimal strips tool:

Ask students to model a given decimal such as .25 or .70

Ask students to model and solve an operation involving decimals.

Invite students to drag various decimals onto the canvas and compare their values. You can even have students write statements using , and = signs.

Visit classplayground.com for related decimal printables such as strips, decimal place value charts, and more.

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Decimal Strips | Free Virtual Manipulatives | Toy Theater

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This interactive decimal strips tool brings the topic to life so students can visualize, model, and explore decimals. Plus, it's free!

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Tomhais Lámhleabhar an Mhúinteora lch. 187 - 236

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Tomhais Lámhleabhar an Mhúinteora lch. 187 - 236

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Odd One Out activities are suitable for all age groups. By encouraging all pupils to 'have a go' and 'valuing all contributions', the skills of reasoning, communicating and expressing are developed. Success is based on skills rather than answers. It also allows every pupil to partake in the activity, no matter what their ability.

Examples of questions/prompts to promote classroom discussion:
● Which one do you think is the odd one out?
● Give me a reason.
● Try to give me another reason why that one might be odd.
● Who had a different answer?
● Give me a reason why each one might be the odd one out.

Take a look at this short video from our 'STEM in a Bubble' webinar which explores 'Odd One Out' activities further. A complete recording of this webinar along with the resources referenced is available here.

Below you will find some Odd One Out stories to try with the pupils in your class. For more examples, see http://wodb.ca/

Choose an Odd One odd activity below. These resources are available in Irish and English in the downloadable file. To download the activity, simply click on the picture.

Choose an Odd One odd activity below. These resources are available in Irish and English in the downloadable file. To download the activity, simply click on the picture.

Either your browser does not support JavaScript or it is disabled. Scoilnet.ie works best with JavaScript enabled.
Add a resource

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What you need...

To register for a Scoilnet Account you will need to have a Teaching Council number and a roll number for your school in Ireland.

If you already have a Scoilnet Account then you can sign in here.

The benefits...

A Scoilnet account will allow you to upload your resources or weblinks to Scoilnet as well as enabling you to share and add resources to a favourites listing. Users who have a Scoilnet Account will also be able to fully access Scoilnet Maps and Census@School from home.

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Official education portal of the Department of Education and Skills in Ireland. Curriculum focused resources and support for primary and post primary teachers.

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PDST Tomhais Lámhleabhar an Mhúinteora lch. 171 Ag ithe mar a bheadh éan ann?

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PDST Tomhais Lámhleabhar an Mhúinteora lch. 171 Ag ithe mar a bheadh éan ann?

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Tomhais Lámhleabhar an Mhúinteora lch. 26 - 83

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Tomhais Lámhleabhar an Mhúinteora lch. 26 - 83

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Printable-Ruler.net - Your Free and Accurate Printable Ruler!

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Printable-Ruler.net provides you with an easy to use, free printable online ruler that will save you to ever look for a ruler again! For Letter as well as A4 sized paper, inches as well as centimeters.

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Leabhar Ionadluach, Deachúlacha & Céatadáin ó PDST

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Leabhar Ionadluach, Deachúlacha & Céatadáin ó PDST

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Our mission is to help you to see the maths that you use in your everyday life by opening your Maths Eyes. Unlock Your Maths Eyes.