Ratio - Ratio and Proportion Problems (2) - Presentation

In a series of engaging activities focused on ratio and proportion problems, students are presented with real-life scenarios to apply their mathematical understanding. In one such activity, they are tasked with determining the quantities of kale and spinach needed for a smoothie, given that the mass of kale is four times that of spinach, and the total mass of the vegetables is 275 grams. The students are encouraged to use their knowledge of ratios to solve this problem, breaking down the total mass into parts that represent the ratio of kale to spinach.

Another reasoning activity presents a confectionery challenge involving packets of button-shaped chocolates with different ratios of red to blue chocolates. Students must figure out the number of red chocolates in the first packet, knowing the ratio of reds to blues and the total number of chocolates in the second packet. This activity not only reinforces the concept of ratio but also introduces proportional reasoning. Independent work tasks further test the students' abilities to read questions carefully, show their calculations clearly, and explain their reasoning. Students are also prompted to discuss how these problems relate to ratios, potentially using bar models to visualize the ratios and to understand the parts and the whole within these scenarios.