This is a short (5 minute) clip showing new brain evidence that all students can learn math to high levels.
A Video on Numbers
In 4th grade, students focus most on using all four operations, addition, subtraction, multiplication, and division, to solve multi-step word problems involving multi-digit numbers. They extend their understanding of fractions, including equal (equivalent) fractions and ordering fractions. They add and subtract fractions with the same denominator (bottom number), multiply fractions by whole numbers, and understand relationships between fractions and decimals.