Estimation and rounding
Why this, why now
This unit helps pupils understand rounding to different decimal places, and significant figures. Pupils will also learn how to truncate numbers and understand the contexts in which these skills are useful. The unit ends will an exploration of rounding and inequality errors.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 1 / 10
Estimation and rounding
This unit helps pupils understand rounding to different decimal places, and significant figures. Pupils will also learn how to truncate numbers and understand the contexts in which these skills are useful. The unit ends will an exploration of rounding and inequality errors.
16 lessons- Rounding decimals to significant figures
- Rounding to three decimal places
- Rounding integers to one significant figure
- Rounding to any number of decimal places
- Rounding errors
- Truncating
- Using inequality notation for errors in calculations
- Degrees of accuracy
- Checking by estimating
- Estimating numerical calculations
- Problem solving with estimation and rounding
- Inequality notation to express error
- Securing understanding of rounding
- Checking understanding of rounding
- Overestimating vs underestimating
- Rounding integers to significant figures