Great trick for teaching how to make Students use a highlighter to find the and then circle the other number with a crayon. Although, I think it would be easier to always make 10 with the larger number, not necessarily the first number in the equation.
The Fraction Pizza is an awesome way to differentiate when teaching fractions. Understand a fraction a/b with as a sum of fractions . Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.