Use pictures of groups to work out how many things there are altogether.
Count Me In
A great range of activities to familiarise learners with numbers to 20, 50 and 100 and the times tables up to 10.
10 Frame Manipulatives
A wonderful open ended resource that can be used for addition, subtration, multiplication and division.
Treasure Island - Grouping
A great a resource where children play 4 different games and learn about grouping objects together.
A great open ended resource where teachers can generate maths word problems. Teachers can specify the operation and range where the answer will fall.