4.MD.2. Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given
|Finding differences between times||
Find how long a journey took by jumping on a timeline.
|Fractions of Numbers||
Use a fraction bar to help children to visualise fractions of numbers. Use division facts to find a unit fraction and then scale up. Levels include finding fractions of decimals.
|Fractions of Amounts||
Click on the squares to shade the given fraction of the shape. The shape will then transform to show the equivalent fraction.
|How much more money?||
Find the total of a set of coins and then work out how much more is needed to make a given amount. A number line is then shown to help support calculation strategies.
Includes the option of a range of international coins.
|Reading Scales - Capacity Word Problems||
Read the scales on the measuring cylinder and answer word problems involving addition and subtraction. Play against the clock for points.
|Fractions Shape Sequences||
Recognise and continue the sequences involving fractions, shapes and colours. Lots of control over level including unit fractions and improper fractions. Extend children by choosing harder levels which require extending the sequence by finding general rules.
|Adding Time Word Problems||
Read the time on either an analogue or digital clock and then answer a word problem involving adding a given time. Find the correct time on an anologue or digital clock. Lots of choice of level, including: adding 1 hour, multiples of 5, or 10 minutes or adding multiples of a quarter of an hour.
This game is available in a new app - Time Games which includes the following games from the website: Telling the Time, Telling the Time in Words, Adding Time Word Problems, Find the Start Time and Using a Calendar. The app is available on Google Play and the App Store.
|Balance scales - add, move or remove a weight||
Balance the scales by adding, moving or removing a weight. A great mental starter to develop addition and subtraction skills.
|Balancing Scales g and kg||
Add weights to either pan until they are balanced. Can be used to teach addition, subtraction, partitioning, and mass, as well as developing an understanding of the equals sign.
|Money Multiplication problems||
Solve reall-life multiplicaion problems involving money.
View full screen in your browser. This ITP displays a thermometer. The scale, range and the interval markers can be changed and a slider control can be dragged up and down the length of the thermometer to set the height of the column. A second marker indicates the last reading so that comparisons can be made. This marker can be fixed in position if required. The positive or absolute difference between two values can be displayed, and the change in the temperature as the marker is moved. The ITP can be used to develop children’s understanding of vertical scales and negative numbers in the context of temperature. The slider controls can be used to introduce and model strategies for addition and subtraction that involve positive and negative numbers. The language of number can be developed, giving meaning to calculations such as subtract negative 3 from negative 7.
This resources is freely available to download from the archived Primary Framework site.
|ITP measuring cylinder||
October 2012 - I have added a new game in which you read numbered and unnumbered scales on a range of different measuring equipment. Click here to play
View full screen in your browser. This ITP allows you to control two taps that pour a liquid in and out of a measuring cylinder. You can set the scale on the cylinder to a maximum of 50, 100, 200, 500 or 1000 units and the scale interval to 1, 2, 5 or 10 units. You can simply turn the taps on and off and ask questions that involve prediction, addition and subtraction. Using the inlet and outlet controls to set the amount of liquid to pour in and out of the cylinder offers the opportunity for the introduction of multiplication (repeated addition) and division (repeated subtraction) too. A marker can be set to indicate an early quantity.
The ITP can be used to explore and consolidate the interpretation and reading of scales, mental calculation strategies and methods of recording. Using different scales can support children’s estimation skills and provides a context for problem solving involving capacity and volume.
This resource is freely available to download from the archived Primary Framework site.
|Balancing scales - convert between g and kg||
The scale is loaded with between 1 and 4 weights. The user then has to balance the scales, converting between g and kg in the process. There is a great deal of control over the level.
A great starter to explore addition, subtraction / difference and partitioning as well as the relationship between grams and kilog More…rams. Levels include converting whole kg to g (and vice versa), converting fractions of kg (eg 1/4kg = 250g) and weights in kg to 1 and 2 decimal places.
|Temperature - Word Problems||
Answer questions about the temperature around the world. Includes levels involving comparing temperatures, and comparing poistive and negative temperatures.
|Solve 2 Step Money Problems||
Read and interpret a word problem. Calulate the cost of 2 items and then find change from a given amount.
** February 2013 - I have added a new game in which you solve 2 step money problems using a calculator **
|Solve 1 Step Money Problems||
Read and interpret a word problem involving addition or subtraction and then solve.
|Fractions of Unknown Numbers||
Find a number when given a fraction of that number. A visual tool to help children see how to first find a unit fraction of an unknown number, and then scale this unit fraction up to find the whole number.