Mental Calculation, Mental & Oral

mental and oral mathsHere's a little gem that turns those very versatile empty number lines on their heads - figuratively speaking!

The main virtue of an empty number line is that 'emptyness' - they can be adapted to any purpose. Here, we keep them empty and challenge children to use their 'problem solving skills' and to use and apply their knowledge of number calculations to determine which numbers are missing. Read more »

mental and oral mathsThis Mental and Oral activity revolves around number bonds (or complements) to 100.

Children work in pairs, using a mini-whiteboard. Ask them to draw a three by three grid and to quickly fill the grid with different multiples of 5. When they have completed this the teacher starts to call out random multiples of 5, children can circle a number on their grid if it is the other half of the pair totalling exactly 100 (the complement to 100). Read more »

mental and oral mathsThis Mental and Oral activity focuses on developing children's use and understanding of number properties.

Children work in pairs, using a mini-whiteboard or a scribble pad in order to determine the identity of two 'secret' numbers. The information you give them about these numbers is related to addition and multiplication, for example: Read more »

mental and oral mathsThis first Mental & Oral activity is focused on collaborative calculation. The children are shown four numbers with the instruction that they work in pairs on mini-whiteboards to devise calculations that will make all four numbers equal.

The activity is easily prepared and can be differentitated. Younger children could be asked to use addition (and/or subtraction). For example, with the following four numbers displayed... Read more »