There were around 20 kids from 6th std above. Thamarai facilitators said that they wanted to teach mathematics using materials. To start with basics we used Dienes block to visualize the arithmetic operations. Children learnt about cube, rod and plate and recalled place values . I wrote the numbers and the operator on the board and asked children to find the answer for it using Dienes block. Children were split into four teams and worked as a team. Facilitators also learnt along with the children. Through this, children got clarity of how carry over works and why do we carry over , borrow and whether we carry over ones, tens or hundreds based on the place value.