New

Year 8

Estimation and rounding

Lessons (16)

Checking understanding of rounding

I can round to the nearest 100 or 10 or whole number or to 1 or 2 decimal places.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Securing understanding of rounding

I can recognise when values have been rounded and state sensible suggestions of what the unrounded value could have been.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding to three decimal places

I can round numbers to three decimal places.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding to any number of decimal places

I can round numbers to any number of decimal places.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding integers to one significant figure

I can round integers to one significant figure.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding integers to significant figures

I can round integers to a required number of significant figures.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding decimals to significant figures

I can round decimals to a required number of significant figures.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Degrees of accuracy

I can appreciate what is meant by a suitable degree of accuracy.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Estimating numerical calculations

I can estimate numerical calculations.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Checking by estimating

I can estimate and check if solutions to problems are of the correct magnitude.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Truncating

I can estimate a value by truncating to a given degree of accuracy.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Overestimating vs underestimating

I can determine whether calculations using rounding or truncating will give an underestimate or overestimate.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Rounding errors

I can appreciate the impact of rounding errors when using a calculator (or other technology), and the way that these can be compounded to result in large inaccuracies.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Inequality notation to express error

I can calculate possible errors expressed using inequality notation a ≤ x < b.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Using inequality notation for errors in calculations

I can use inequality notation $$a ≤ x < b$$ to express errors in calculations.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video

Problem solving with estimation and rounding

I can use my knowledge of estimation and rounding to solve problems.

1 Slide deck

1 Worksheet

2 Quizzes

1 Video