Ten Frames
A very versatile teaching tool which has 5, 10, 20 and 100 frames or grids as the facility to make your own custom frame. It could be used for addition especially number bonds, subtraction as well as creating multiplication arrays.
Fractions
A great teaching tool for fractions. Use a bar or circle to represent, compare, and perform operations with fractions with denominators from 1 to 100. Reveal or hide numeric labels as needed.
Moving Digit Cards
An interactive whiteboard teaching aid for place value. It demonstrates the effect of multiplying and dividing whole or decimal numbers by 0.1, 10 or 100. The columns headed by letters are incorrectly labelled.
Flip Counter
A brilliant counting tool which displays numbers up to 99.999. It is excellent for demonstrating 1 more or less, 10 more or less or 100 more or less. It is also useful as a place value tool and there is an optional decimal point.
Equivalent Fractions Finder
Experiment visually with the values of equivalent fractions of a square or circle. The site lends itself well as a teaching tool on an interactive whiteboard.