Estimation resources

In this practical task, students work in pairs to estimate how much time they think has passed. One student estimates while the other times.

Students estimate a division problem, share their methods, discuss the nice numbers and factors method, and then do more problems using nice numbers and factors.

In this practical task, students estimate the capacity of two different sized containers, then check their estimates with a measuring jug.

In this practical task, students estimate the length of two common classroom objects, then check their estimates with a ruler.

In this practical task, students estimate, and then measure, the weight of two objects using a number of multi-link cubes, a balance scale and weights.

In this practical task, students estimate, then measure, the weight of two bags using kitchen scales.

In this practical task, students estimate, then measure, the length of two objects using a ruler.

In this practical task, students estimate and then measure temperatures.

In this practical task, students first estimate, then measure, how many 500ml jars it takes to fill a 1 litre and a 3 litre container

In this practical task students use a grid squares overlay to estimate the area of six shapes by counting the number of squares each shape covers.

In this practical task, students estimate, then measure, the volume of two containers using a measuring jug.

In this practical task, students estimate the weight of two different sized bags, then check their estimates using kitchen scales.

Students estimate a subtraction problem, share their methods, discuss the rounding one number method, and then do more problems by rounding one number.

Students explain subtraction estimation methods used to solve a word problem.

In this practical task, students estimate and then measure how far they can jump.

This practical task requires students to lift a 1 kg weight and then estimate whether a range of everyday objects weigh less than, about the same as, or more than 1 kilogram.

In this practical task, students decide which of four shapes have the same area, then use 100s blocks to check their answer.

Using given information about a shop's takings students round the amounts to give estimated totals for four weeks takings.

Students calculate or estimate the area for each of three shapes on a grid.

Students use a scale map to estimate the area of Antarctica and explain their method.

Students explain errors in calculations that include all operations, decimal values, and percentages.

Students decide which children are estimating and which are not, and explain their reasoning.

Students select the best estimate for division and multiplication problems involving stamps, money, and baskets of pinecones.

Students calculate an exact square root and estimate approximate square roots by finding the length of the square flower bed of a given area, and give an explanation for their answers.

In this practical task, students decide how many of four different shaped containers have the same capacity, then check by filling them with water.