# Hundred Square

A 100 Number square can come in useful for many math explanations so here’s a new one that will work on all devices including iPad, tablets and interactive whiteboards.

It lets you choose whether it runs from top to bottom or bottom to top.  You can also choose if the numbers run from 0 to 99 or 1 to 100.  Use the circular buttons to select the colour that touched tiles change to or change the whole lot using the coloured square  buttons.  White, in both cases, hides the numbers.

Go to the hundred square teaching resource.

Here is a different hundred square specifically designed to help with teaching addition.

Here is a hundred square with a timed activity for children to use to practise addition with.

# Arithmagons

This teaching and learning resource, compatible with iPad, other tablets and PCs for the IWB uses the old favourite: Arithmagons.  The thought to produce an updated versions of this resource came from browsing the informative blog by Colleen Young.  There does not appear to be any Arithmagon resources compatible with tablets until this one. In these Arithmagons, the numbers in the squares are the result of the circles added together.  They are a good way of providing arithmetic practice in straightforward addition but also in inverse operations and mathematical reasoning if you choose to leave the circles blank rather than the squares. In practice mode there is no time limit and a new set of numbers can be generated at any time,  This is a good mode for teachers to use at the whiteboard.  In challenge mode 10 arithmagons are generated to solve, and time and error counts are tracked.  In both modes the resource can check the accuracy of the answers. It covers:

• Addition of <10, <100, and less than <1000.
• Multiplication of positive and negative numbers.
• Addition of decimals to 1dp and 2dp.
• A choice to find the circles, the squares or a mix.

Tap where you want to enter an answer then use the onscreen numbers to do so.  Enter them with the enter button (shown by a right arrow).  The pulsing green lines remind children which numbers go into making which numbers.  Help options are provided in the app for reminders.

This resource is available as an app for iPads and Windows.  By buying the app you gain the convenience of not having to rely on wifi and you support this site in continuing to provide free resources for all devices for teaching and learning.

# Multiplication Sprint

This education game is for practising multiplication tables.  Compatible with PCs, iPads, and Android Tablets you are able to use it in whatever way best suits your teaching.  In particular the presentation of this games has been kept age neutral to provide an opportunity for older children to practise their multiplication tables away from the more usual younger styling of games on this subject.  As it is free to use and compatible with a wide variety of devices children also have a good opportunity to use it at home.

The purpose of the game is to last as long as possible, recorded by the ever increasing score.  The car’s fuel is constantly ticking down.  The fuel can be topped up by collecting the correct fuel barrels to answer the question at the top of the screen.  Beware though, wrong barrels take fuel away.  A couple of other hazards are thrown in to keep it interesting.

On a computer the arrow keys control LEFT and RIGHT.  On touch devices just touch the appropriate side of the lower part of the game.

This resource has been tested on iPad 2 and above, Nexus 7 2013.  On a computer it will require a modern browser. On the PC best performance is on latest Chrome browser.

Go to multiplication game.

# Geoboard

This Geoboard style interactive whiteboard resource is identical to the one found on the Numeracy Basics app for iPad.  You can use this one for free while teaching to the whole class while using the iPad version for one to one assistance during the lesson.

Drag the existing triangle to the pegboard.  Add new corners by tapping on one of the existing sides.  Remove corners by double tapping them.  Remove the whole shape by dragging one of the corners of the right of the pegboard.  Choose the colour of the new shape using one of the 4 available colours.

# Card Frame

This resources brings a popular old resource up to date.  As well as being smartened up this resource is compatible with iPads and other tablets as well as PCs.  In essence it is the same as the older resource and is made to accompany a puzzle published in an old book by Henry Ernest Dudeney.  The puzzle is a useful one for teaching deeper mathematical thinking because while it can be solved by trial and error, thinking about the maths behind it can make it much easier.

The goal is to choose a number that all 4 sides of the frame can add up to and arrange the cards to do this.  Some numbers are possible some numbers are not.  This puzzle has been selected as it allows students of all abilities to have a go as the maths involved is not difficult.  The challenge should be to find a method of determining what numbers can be used as the common total amount, and then how to make finding the layout much easier.  The resource provided here allows the puzzle to be demonstrated easily and can also allow whole class discussion of how to approach the problem.  Clicking on one card and then another causes them to swap places.  The resource totals the different lines automatically.  Tapping the chalkboard brings up brief instructions.

If you would like the solution and teaching notes to this puzzle please contact me on twitter as this makes it much easier to see if it is a teacher or a child cheating on homework!  If you don’t use twitter leave a request in the comments but this will take longer to receive a response.

This resource does not work with Internet Explorer 9.  On Windows please upgrade to IE 10 or use Chrome or Firefox. Or use the original version of this resource linked to above.

Go to teaching resource.

HTML5 performance is still not quite there yet so on some devices this resource may lag slightly.

This interactive whiteboard resource is useful for introducing children to the concept of having the answer but not one of the numbers in the question.  An addition is shown with an answer but not one of the numbers being added.  The “20” button generates questions with an answer below 20.  The “100” button generates numbers with an answer below 100.

There are two modes that can be toggles to control how this works.  The mode is selected by using the options card which can be toggled on by tapping the turquoise triangle at the upper left of the screen.  Interactive answers can be turned on or off.

Interactive answers off:  Just the addition is shown with the missing number covered by a “?”.  Tap help to provide a hint to the question using inverse operations.  Tap the question mark to reveal.  This mode is useful for quick question and answer sessions.

Interactive answers on:  The question mark cannot be removed.  A set of answer numbers appear which can be dragged to the “Answer Here” box appear.  Once the answer is given the tick/cross button can be pushed to check the answer. Stars appear down the right of the screen.  Each pair of stars correspond to 1 question.  One star is filled in for an answer for numbers below 20.  Two stars are filled in for answers to a question below 100.  Use these to try and get ten answers correct in a row.

The hidden number can be toggled between left and right using the toggle on the option card.  The next question generated will have the card in the new place.

This resource was originally designed to be part of the Numeracy Basics app but I decided that its use is to specific for that app which is a general set of tools rather than focused activities.  This may appear on another app of resources so if you have any suggestions for that or for this IWB version please leave a comment or let me know on twitter @teacherled.

# Number Flip

This interactive whiteboard resource is designed to facilitate number work and place value with a class.  It works primarily as an aid to questioning when comparing the effect of change a digit in a place and comparing number sizes.  You may also find other ways to use it.

The resource was originally suggested on twitter by @gepocock.  She originally asked for it to use dice to allow numbers to be randomly generated for hundreds tens and units.  I changed this to flip charts as dice are a little impractical to manipulate when represented digitally.  Furthermore a six sided dice doesn’t have enough numbers and a ten sided dice can be confusing to read.  Hopefully the end result allows the same use.

Generate a new digit by tapping the page on each flip chart.  Flip charts can be rearranged by dragging them from the red top of the chart.  They can be placed on any empty peg.  The place value headings can be toggled using the top “x” button.  The flip charts and pegs on the bottom can be toggled on or off by using the bottom “x” button.

This resource is a candidate to be added to the Numeracy Basics app for the iPad for its next update.  You can comment on its functionality either in the comments below or on twitter @teacherled.