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Students estimate an addition problem, share their methods, discuss the averaging method, and then do more problems using averaging.

Students estimate a multiplication problem, share their methods, discuss the rounding method, and then do more estimation problems using rounding.

Students estimate a multiplication problem, share their methods, discuss the front-end method, and then do more problems using front-end.

Students estimate an addition problem, share their methods, discuss the front-end method and then do more problems using front-end.

In this task students decide which people are estimating and which are not, and explain their reasoning.

Students estimate an addition problem, share their methods, discuss grouping nice numbers, and then do a problem using this method, then design a question showing how it uses the method.

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

Students show how they estimate in some multiplication problems and come up with sensible estimates.

Students use given information to solve a problem using a Venn diagram.

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.

Students show how to partition a number of counters and identify the fraction shared.

Students use cuisenaire rods to work out part-whole fraction problems.

Students solve subtraction story problems and show their strategies.

Students answer questions about fractions of different wholes (units).

Students use a number line to show how to solve whole number addition and subtraction problems.

Students find and show given fractions of shapes and sets of counters.

Students find the sum of a number of given decimal weights of objects or the post.

Students use fractions as operators to find unit fractions of a given whole number.

Students show how to divide 3-digit whole numbers into equal sized groups and identify any remainder.

Students identify fractions that are greater than one, explain their reasoning and identify how far from one some fractions are.

Students find the number of groups of a given size using division, reverse multiplication, trial and improvement, or iterative equal sharing. Students must show their working.

Students show how to divide given amounts into the number of groups of a given size.

This task requires students to estimate some addition problems using any appropriate method.

This practical task involves students making best estimates of sets of items and clearly demonstrating their method(s) of estimation.

Students compare two fractions, find the larger fraction and show or explain their reasoning.