Below are some worksheets for young children. Simply print them and have the children write inside the outlines, Insha-Allah. They will quickly learn how to write, Insha-Allah. Those who are not able to recognize letters or numbers yet will also learn recognition, Insha-Allah.
If your child (like mine) isn't into one-on-one learning simply leave a worksheet or two out on the table along with their box of markers (or whatever they love to write with). At various times start working on a worksheet yourself while the child is looking on. Soon you will see that the child wants to imitate you and they will start doing the worksheets on their own, Insha-Allah.
Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz A to Z
A to F G to L M to R S to X YGZHKE
1 2 3 4 5 6 7 8 9 0 10 11 12 13 14 15 16 17 18 19 1 to 19