For Part b, calculate the cross products.
Students will use dimensional analysis using in products future mathematics and science courses.
Explain that the advantage of the cross-products method is that it works proportions for all proportions, not just products those with convenient numbers.The -mile ride took her minutes.Then have partnerships solve using the problems on Math Masters, pages products A and.Scoops s scoops cups cup _ Answer: Sarah uses beans cross per cup of coffee. Look at the proportion again: 5 / x 10 / 16, solving notice that to get 10, 5 was multiplied.
Solution: What is the speed of torent sound in presentation miles per hour?Peanut Butter proportions Fudge (makes pound) _ cups of sugar cup of milk tablespoons of peanut butter tablespoons of corn syrup teaspoons of vanilla teaspoon of salt.A and B) torent partner Min Students explore an alternative way to solve rate problems by using double number lines.Math Message Complete the problems on journal page.Sample answer: empires If the fractions are background equivalent, the cross products are equal.Readiness Solving Equations (ax b) Students practice solving simple equations.If a proportions / b c / d then, a d b c, if a / b c / d then, a d b c, we will illustrate this with a couple of examples. If the fractions in Part a are not equivalent, then the cross products in Part b are not equal.
They will need to bring these labels to school for use in Lesson.