Measurement Tools

As we've moved into our measurement unit in math, students have had to recall many different terms of measurement, along with conversions within these from one unit to another.  A key tool we often use in 4th grade purple is a flip book with information that we can access when we need.

Adding & Subtracting Unlike Fractions

Students are learning how to add and subtract fractions with unlike denominators.  This can be a tricky tricky process.  We've used both fraction strips and numbers & symbols to do these processes.  We are only looking at changing one fraction to have a similar denominator as the other, where the larger numbered denominator is a multiple of the smaller numeral (ie 1/2 to 3/6 - sixths, as opposed to 1/2 and 1/3 to a common denominator).

By using two different methods, students: a) develop better conceptual understanding, and b) show how they can prove their answer is correct.

Here are some links that we've used in class:

Virtual Fraction Strip manipulatives

Adding Fractions Notes - Math is Fun website

Subtracting Fractions Notes - Math is Fun website