现实世界数学建模

使用适当的工具、图表或方程式，为涉及比、比例尺、体积、单位换算和比例推理的现实问题建立模型。

Model real-world problems involving ratio, scale, volume, unit conversion, and proportional reasoning with appropriate tools, diagrams, or equations

学习证据 / Evidence

• 选择条形模型或双数轴来表示一个比的问题并解决它。
• 用带有标注的图形来建立体积问题的模型，应用公式，并在具体情境中解释结果。
• 判断测量答案是否需要四舍五入，以及需要精确到什么程度。

• Choose a bar model or double number line to represent a ratio problem and solve it
• Model a volume problem with a labelled diagram, apply the formula, and interpret the result in context
• Determine whether a measurement answer should be rounded and to what degree of accuracy

评估问题 / Assessment

当{{name}}运用数学解决实际问题时——比如计算容器的体积或计算百分比折扣——他们是否会判断答案需要精确到什么程度，并解释其在具体情境中的含义？

When {{name}} uses maths to solve a real problem — like calculating the volume of a container or working out a percentage discount — do they decide how precise their answer needs to be and explain what it means in context?