Students check their work with the fraction circle pieces, then switch roles and start again 2. Lead a discussion with the students on how they can use a fraction to tell how full or empty a jar is 2. Guide students through the four exercises on page 385 and page 386. Give each pair of students one glass with the ten paper rectangles and one set of labeled strips 2. The first student selects a paper strip and holds it around the bottom of the glass so that the second student cannot read the fraction written on the back.
Students imagine that the paper represents milk poured into the glass.
The first student asks how full the glass is. The second student answers by saying and writing a fraction 4. Students check the answer on the back of the paper strip. They then switch roles and start again 4. They put a paper square on each plate.