Hi a very warm welcome to the site.
First of all, is there anyone in your setting who can help you with this?
Do they have any activity planning/sheets that means you can fill them in?
If not there is a sample on this thread which you can adapt -
activity plan although check with your tutor that it's acceptable.
You can read about supporting emergent numeracy/mathematics and literacy on pages 238 and 221 of this
level 3 EYE handbook
Then think about the activities that happen in your setting involving numbers, quantities, sizes, shapes, space, time, matching, sorting, patterns, measuring, problem solving, estimating and using mathematical language such as big, small, tall, short, under, over, in front, behind, take away, add on, heavy, light, more, less.
and for literacy think about the activities and resources where children find words to look at and touch, form sounds with their mouths - are any of these
phonics programmes used in your setting?, and use tools that make lines as a basis for writing - pens, crayons, chalks, paintbrushes.
Strategies that cover literacy & maths could be a letter and number of the week approach, book area, maths table.
Individual needs of a child will link to their development and planning for their learning requires you to talk to colleagues, especially children's designated keypeople.
Hope this helps a little xx