If one boy can walk to school in 20 minutes, then two boys can walk to school in 10 minutes. They test their guesses by counting the number of each color in a small bag and finding the percentages. They also discuss whether they improve their estimates by combining their data. Students simulate running a business using the computer program The Whatsit Corporation or Survival Math . Develop and use order relations for integers and rational numbers.
Students use concrete and pictorial models to develop order relations among fractions and integers.
Using Cuisenaire Rods and varying the unit , students demonstrate that one fraction is larger than another. Similar arguments and conclusions are made on a number line for integers. They then order themselves from least to greatest along the front or side of the classroom. Recognize and describe patterns in both finite and infinite number sequences involving whole numbers, rational numbers, and integers. Students formulate a description of the nth row of Pascal's triangle.