代数转换
Algebraic Transformations
通过将实际情境或过程转化为代数表达式或公式，并借助图像进行建模；能够在文字题、代数表示、数值表和图形表示之间进行转换。
Model situations or procedures by translating them into algebraic expressions or formulae and by using graphs; move between word problems, algebraic representations, tables, and graphical representations
学习证据 / Evidence
- 将文字题或现实情境转化为代数表达式或公式
- 根据代数规则构建数值表
- 绘制相应图像，并结合问题情境进行解释
- Translate a word problem or real-world situation into an algebraic expression or formula
- Construct a table of values from an algebraic rule
- Plot the corresponding graph and interpret it in the context of the problem
评估问题 / Assessment
{{name}}能否把现实情境——比如出租车起步价为2英镑，每英里另收1.50英镑——写成总费用的代数公式，并画出相应的图像大致样子？
Can {{name}} take a real-world situation — like a taxi that charges £2 plus £1.50 per mile — and write an algebraic formula for the total cost, then sketch what the graph looks like?