Lesson Plan : Yack in the Box

This lesson involves the students working with fractions. The students begin by creating a bigger rod by combining two or three rods. The combination of rods represent one whole unit. Students form addition and subtraction sentences involving fractional lengths of the other rods. The students also will also be able to represent fractions with equivalent expressions. They can begin with combining yellow and black rod, calling it yack rod. Then students will use the white rods to see how many they will need to represent an equivalent rod. The process will continue until the orange rod is use to represent the length of the combination of two rods.