Thermometer reading asks students to attend to the scale, the unit and the direction of the temperature change. It is easy to read the number without noticing whether it is Celsius or Fahrenheit.
The Daily Maths Review thermometer tool gives teachers a screen-based thermometer with a temperature slider, Celsius and Fahrenheit readouts, weather and science ranges, and a clear marked thermometer display.
Start with the scale marks
Before students name the temperature, ask which unit and range they are reading. This keeps the focus on the marks on the thermometer rather than guessing from the fill height.
- Set a temperature with the slider.
- Ask students to find the matching mark on the Celsius scale.
- Switch the current readout to Fahrenheit and compare the values.
- Move below zero and discuss what negative temperatures mean.
Compare weather and science ranges
The weather range keeps common classroom examples large and clear. The science range gives more room when students need higher temperatures or a wider scale.
Set the thermometer to 0 C, move to -5 C, then ask students what changed on the thermometer and why the value is below zero.
Move from model to practice
Once students can explain the scale and unit, move to measurement practice questions. If they confuse the unit or skip marks, return to the thermometer tool and trace the scale from zero.