测量温度
Measuring temperature
在具体情境中运用负数(温度、金融、海平面);计算跨越零点的间隔。
Use negative numbers in context (temperature, finance, sea level); calculate intervals across zero
学习证据 / Evidence
- 温度从 3°C 降到 −5°C——下降了多少度?(8 度)
- 计算银行余额 −£120 与 £350 之间的差额。
- 在数轴上排列 −7、−3、0、2、5,并找出从 −7 到 5 的间隔。
- The temperature falls from 3°C to −5°C — what is the drop? (8 degrees)
- Calculate the difference between a bank balance of −£120 and £350
- Order −7, −3, 0, 2, 5 on a number line and find the interval from −7 to 5
评估问题 / Assessment
如果银行账户从 −£45 变成 +£120,{{name}}能否算出总变化量——从零数过去,得到 £165?
If a bank account goes from −£45 to +£120, can {{name}} work out the total change — counting through zero to get £165?